Mayagüez incident
Encyclopedia
The Mayaguez incident between the Khmer Rouge
and the United States from May 12–15, 1975, was the last official battle of the Vietnam War
. The names of the Americans killed, as well as those of three Marines
who were left behind on the island of Koh Tang
after the battle and who were subsequently executed by the Khmer Rouge, are the last names on the Vietnam Veterans Memorial
. The merchant ship's crew, whose seizure at sea had prompted the U.S. attack, had been released in good health, unknown to the U.S. Marines or the U.S. command of the operation, before the Marines attacked. It was the only known engagement between U.S. ground forces and the Khmer Rouge.
passed near Poulo Wai island en route to Sattahip, Thailand in recognized international sea lanes claimed as territorial waters by Cambodia. At 14:18, a Khmer Rouge naval forces "Swift Boat
" was sighted approaching the Mayaguez. The Khmer Rouge fired across the bow of the Mayaguez and when Captain Charles T. Miller ordered the engine room to slow down to maneuvering speed to avoid the machine-gun fire, the Khmer Rouge then fired a rocket-propelled grenade across the bow of the ship. Captain Miller ordered the transmission of an SOS
and then stopped the ship. Seven Khmer Rouge soldiers boarded the Mayaguez and their leader, Battalion Commander Sa Mean, pointed at a map indicating that the ship should proceed to the east of Poulo Wai. One of the crew members broadcast a Mayday
which was picked up by an Australian vessel. The Mayaguez arrived off Poulo Wai at approximately 16:00 and a further 20 Khmer Rouge boarded the vessel. Sa Mean indicated that the Mayaguez should proceed to Ream on the Cambodian mainland, but Captain Miller showed that the ship's radar was not working and pantomimed the ship hitting rocks and sinking. Sa Mean radioed his superiors and was apparently instructed to stay at Poulo Wai, dropping anchor at 4:55pm.
, Indonesia who notified the US Embassy in Jakarta. By 05:12 Eastern Standard Time
(EST) the first news of the incident reached the National Military Command Center
(NMCC) in Washington D.C.
U.S. President Gerald Ford
was informed of the seizure of the Mayaguez at his morning briefing with his deputy assistant for national security affairs, Brent Scowcroft
. At 12:05 EST (21:05 Cambodia), a meeting of the National Security Council
(NSC) was convened to discuss the situation. Meanwhile the NMCC ordered Admiral Noel Gayler
, Commander in Chief, United States Pacific Command
(CINCPAC), to launch reconnaissance aircraft to locate the Mayaguez. The members of the NSC were determined to end the crisis decisively, believing that the fall of South Vietnam less than two weeks before and the forced withdrawal of the United States from Cambodia, (Operation Eagle Pull
) and South Vietnam (Operation Frequent Wind
) had severely damaged the U.S.'s reputation. They also wished to avoid comparisons to the Pueblo incident
of 1968, where the failure to promptly use military force to halt the hijacking of a US intelligence ship by North Korea
led to an eleven-month hostage situation. It was determined that keeping the Mayaguez and its crew away from the Cambodian mainland was essential. As the United States had no diplomatic contact with the Khmer Rouge regime in Cambodia, President Ford instructed Secretary of State Henry Kissinger
to urge the People's Republic of China to persuade the Khmer Rouge to release the Mayaguez and its crew.
Following the NSC meeting the White House issued a press release stating that President Ford considered the seizure an act of "piracy
". Secretary of Defense, James R. Schlesinger
ordered the military to locate the Mayaguez and prevent its movement to the Cambodian mainland, employing munitions (including tear gas and sea mines) if necessary.
Secretary of State Kissinger sent a message to the Chinese Liaison Office in Washington demanding the immediate release of the Mayaguez and its crew, but the chief of the Liaison Office refused to accept the note. Kissinger then instructed George H. W. Bush
, then head of the U.S. Liaison Office in Beijing, to deliver the note to the Chinese Foreign Ministry and to pass on an oral message that "The Government of the United States demands the immediate release of the vessel and of the full crew. If that release does not immediately take place, the authorities in Phnom Penh will be responsible for the consequences."
aircraft stationed at Naval Air Station Cubi Point
in the Philippines and at U-Tapao Royal Thai Navy Airfield
in Thailand took off to locate the Mayaguez. The aircraft carrier
, then en route to Australia, was ordered into the area. The destroyer escort and the guided missile destroyer were both ordered to proceed at high speed from the Philippine Sea
towards the Mayaguezs last known location.
An alert order was sent to 1st Battalion 4th Marines
(1/4 Marines) at Subic Bay
and to the 9th Marine Regiment on Okinawa
. A reinforced company from 1/4 Marines was ordered to assemble at Naval Air Station Cubi Point
for airlift to Thailand, while an 1100 man Battalion Landing Team (BLT) assembled in Okinawa.
Shortly after the Orion made its low pass the Khmer Rouge leader, Sa Mean, ordered Captain Miller to get the Mayaguez under way. At 08:45 the Mayaguez set off towards the northeast following one of the Swift Boats. The Orion continued to track the Mayaguez as it left Poulo Wai. Once the location of the Mayaguez was identified, Admiral Gayler ordered the commander of the Seventh Air Force
, Lieutenant General John J. Burns, at Nakhon Phanom Royal Thai Air Force Base
to move combat aircraft to the area. At 13:00 two unarmed F-111 fighter-bombers diverted from a training mission began making low-level high-speed passes by the Mayaguez. Once the F-111s had left Sa Mean ordered Captain Miller to follow the Swift Boats around Koh Tang
and drop anchor approximately 1.5 km north of the island. Two F-4 Phantoms soon arrived over the Mayaguez and began firing their 20mm cannon
into the water in front of the ship. The F-4s were followed by A-7Ds and more F-111s which continued to fire into the sea in front of and behind the ship indicating that no further movement should be attempted.
At 16:15 the Khmer Rouge ordered the Mayaguez crew onto two fishing boats which then took them closer to the shore of Koh Tang.
III Marine Amphibious Force
(III MAF) assigned Task Force 79.9 with recovering the Mayaguez and designated D Company 1/4 Marines in the Philippines as the unit that would actually retake the Mayaguez, but General Burns wanted additional force and orders were sent to the III Marine Division on Okinawa. 1st Battalion, 9th Marines
(BLT 1/9) was then on alert as the primary "air contingency" reaction force, but most of BLT 1/9, were ending their tours of duty and were not subject to further extension of their tours except in the case of emergency. III MAF requested the extension of BLT 1/9's tour but this was refused. 2nd Battalion, 9th Marines
(BLT 2/9) (commanded by Lieutenant Colonel Randall W. Austin), was then in a training exercise on Okinawa and it received orders on the night of 13 May to return to camp and prepare for departure by air at dawn on 14 May. On the morning of 14 May BLT 2/9 boarded Air Force C-141s at Kadena Air Base
to fly to Thailand. The 9th Marine Regiment had been the first U.S. ground combat force committed to the Vietnam War
in 1965, but in May 1975 only a few of the officers and NCOs from BLT 2/9 had seen combat in Vietnam.
Nine USAF
HH-53
Jolly Green helicopters of the 40th Aerospace Rescue and Recovery Squadron
and 10 CH-53 Knifes of the 21st Special Operations Squadron
were available at Nakhon Phanom in Thailand for the rescue operation. There were differences between the two types which would become relevant during the battle: the HH-53 was air-refuelable, had 450-gallon foam-filled tip tanks, a tail Minigun
with armor plating, and two waist Miniguns. The CH-53 was not air-refuelable, but had 650-gallon non-foam-filled tip tanks and two Miniguns, although no tail gun. Thus, the HH-53's fuel tanks were less vulnerable to ground fire and with its refueling capability, could remain in the battle area indefinitely as long as it had access to a tanker.
On May 13, General Burns and his Seventh Air Force staff developed a contingency plan to retake the Mayaguez using an assault force composed of men of the 56th Air Force Security Squadron. 75 volunteers from the 56th would be dropped onto the containers on the decks of the Mayaguez on the morning of 14 May. In preparation for this assault five HH-53s and seven CH-53s were ordered to proceed to U-Tapao Royal Thai Navy Airfield
for staging. At approximately 21:30, one of the 21st SOS CH-53s (68-10933, call sign Knife 13) crashed, killing 18 security police and its five-man crew.
President Ford chaired an NSC meeting at 10:22 EST (21:22 Cambodia), where the Air Force rescue plan was cancelled due to the accident and the fact that the containers on the Mayaguez could not bear the weight of the helicopters while rappelling
men down would expose them to gunfire. It was decided that it was necessary to wait for the Navy ships to arrive off Koh Tang and for the Marines to assemble in Thailand before a rescue attempt would be mounted. President Ford ordered the Air Force to stop any Cambodian boats moving between Koh Tang and the mainland.
Early on the morning of May 14, the Khmer Rouge loaded the Mayaguez crew onto one of the fishing boats and they left Koh Tang following two of the Swift boats on a heading for Kampong Som. Two F-111s swept past the fishing boat, followed by a pair of F-4s and a pair of A-7s, which began firing in front of the Swift boats and then directly at the Swift boats, causing one of them to turn back to Koh Tang. The jets were then joined by an AC-130H Spectre gunship from the 388th Tactical Fighter Wing which proceeded to engage the second Swift boat with its cannons. An A7D then sprayed the Swift boat with its 20mm cannon, sinking it. The fighters then came at the fishing boat dropping bombs and firing their cannon into the water in front of it and spraying the boat with shrapnel. The fighter crews then reported back that 30 to 40 Caucasians had been seen on board the fishing boat.
In Washington President Ford convened another NSC meeting at 22:30 EST (09:30 14 May Cambodia). A communication link had been established between the White House, Seventh Air Force at Nakhon Phanom, CINCPAC in Hawaii and the aircraft orbiting above Koh Tang allowing for near real-time communications. The orbiting fighters reported that they could try to shoot the rudder off the fishing boat to stop its progress to Kampong Som, but the NSC decided that the risk of killing the Mayaguez crew was too great. At 23:00 EST (10:00 Cambodia) President Ford ordered that only riot-control agents should be dropped on or near the fishing boat, while all patrol boats should be sunk.
The NSC meeting continued to consider the appropriate course to resolve the crisis. It was informed that the Chinese Foreign Ministry in Beijing had refused to pass on the American note intended for the Khmer Rouge, but George Bush reported that they had read the note and that it might have been relayed to the Khmer Rouge. With a diplomatic solution appearing unlikely, General David Jones
, acting Chairman of the Joint Chiefs of Staff
, presented the NSC with a range of military options. Rescue planning was complicated by the uncertainty surrounding the location of the Mayaguez crew, it was believed that some were still on the ship, some on Koh Tang and others were on the fishing boat bound for Kampong Som. The NSC decided to proceed with a simultaneous attack by Marines to retake the Mayaguez and attack Koh Tang, together with attacking Cambodian shipping and bombing mainland targets.
At 10:10, despite having been hit by tear gas, the fishing boat arrived at Kampong Som. The Khmer Rouge commander at Kampong Som, apparently fearing attack by the Americans, refused to accept responsibility for the Mayaguez crew and so the fishing boat moved further down the coast, dropping anchor off the island of Rong Sam Lem. The orbiting fighters lost track of the fishing boat once it entered the port at Kampong Som, and so this was the location transmitted up the chain of command. At 11:29, U.S. aircraft sank another patrol boat and damaged another four.
1/4 Marines had arrived at U-Tapao from the Philippines at 05:45 on May 14 and had been waiting on standby for a helicopter assault on the Mayaguez, but as the news of the arrival of the fishing boat at Kampong Som came in the helicopter assault was cancelled. At 14:00 BLT 1/9 began arriving at U-Tapao.
At 21:00 the rescue plan was finalised. 600 Marines from BLT 2/9 — composed of Golf and Echo Companies — were assigned to conduct a combat assault in five CH-53 Knifes and three HH-53 Jolly Greens to seize and hold Koh Tang. Two helicopters would make a diversionary assault on the West Beach, while six helicopters would make the main assault on the wider East Beach. The East Beach force would move to the nearby compound where the Mayaguez crew was believed to be held and then move across and link up with the West Beach force. Two more waves of helicopters would be required to deploy all of BLT 2/9 to Koh Tang, the flight from U Tapao to Koh Tang was a four-hour round trip. It was estimated that only 20-30 Khmer Rouge were on Koh Tang; the information regarding the heavy anti-aircraft fire coming from Koh Tang and the number of gunboats present was not passed on to the Marines. A unit of 57 Marines from Delta Company, 1/4 Marines together with volunteers from Military Sealift Command
to get the Mayaguez under way, an explosive ordnance disposal team and a Cambodian linguist would be transferred by three HH-53 Jolly Greens to the Holt which was scheduled to arrive on station at dawn for a ship-to-ship boarding of the Mayaguez one hour after the assault on Koh Tang began. Two additional CH-53s (because of their superior firepower, all the HH-53s were used for troop lift) were tasked as Combat Search and Rescue
helicopters, supported by an HC-130
"King" command-and-control aircraft.
The Wilson was assigned to support the Koh Tang operation, and, after retaking the Mayaguez, the Holt would be deployed in a blocking position between Koh Tang and the Cambodian mainland with the mission of intercepting and engaging any Khmer reaction forces. Navy aircraft from the Coral Sea were given the mission of striking targets on the Cambodian mainland to prevent interference with the rescue.
At 15:52 EST (02:52 15 May Cambodia), President Ford convened the fourth and final NSC meeting regarding the Mayaguez. General Jones briefed the NSC on the assault plan and plans for strikes by Guam
-based B-52s on the port facilities at Kampong Som and the naval base at Ream. Concerned that the use of B-52s might be excessive, President Ford limited the bombing to attacks by carrier-based aircraft commencing at 07:45 (Cambodia) and gave the go-ahead to the rescue plan.
, the Vietnam People's Army
moved quickly to take control of a number of islands formerly controlled by South Vietnam
and other islands contested between Vietnam and Cambodia. The Khmer Rouge commander of Kampong Som District, Em Son, was also given responsibility for securing Koh Tang and on 1 May he took a force of 100 men to Koh Tang to defend the island against attack by the Vietnamese. Sa Mean was given responsibility for the defense of Poulo Wai.
On the East Beach two heavy machine guns had been dug in at each end of the beach and fortified firing positions had been built every 20 metres behind a sand berm connected by a shallow zig-zag trench. Two M60 machine gun
s, B-40 rockets and two DK-82 mortar/grenade launchers were in the firing positions. On the West Beach a heavy machine gun, an M-60, B-40 rockets and a 75mm recoilless rifle were dug into connected firing positions. North of each beach was a 60mm mortar and south of the beaches was an 81mm mortar that could fire on either beach. Ammunition was stored in dug-in bunkers one behind each beach, with a third ammunition dump located near Em Son's command post in the jungle south of the beaches.
aircraft saturated the Mayaguez with tear gas munitions. Equipped with gas masks, the Marines at 07:25 hours then conducted one of the few hostile ship-to-ship boardings
by the U.S. Navy since the American Civil War
, securing the vessel after an hour-long search, finding it empty.
s (LZs) on Koh Tang. At the West Beach, the first section of two CH-53 helicopters came in at 06:20 hours. The first helicopter; Knife 21, landed safely, but while offloading its Marines came under heavy automatic weapons fire, destroying an engine. It managed to take off, protected by suppressive fire from the second CH-53, Knife 22, and ditched 1.6 km offshore. Knife 22 was damaged so severely that it turned back with its Marines (including the Golf Company commander) still aboard escorted by Jolly Green 11 and Jolly Green 12, and crash-landed in Trat Province
on the Thai coast, where its passengers were picked up by Jolly Green 12 and returned to U Tapao.
At 06:30, the CH-53s approaching the East Beach encountered intense automatic weapons and RPG
fire from entrenched Khmer Rouge. Knife 31 was hit by two RPGs, which ignited its left fuel tank and ripped away the nose of the helicopter, it crashed in a fireball fifty meters offshore. A pilot, five Marines, and two Navy corpsmen were killed in the crash, another Marine drowned swimming from the wreck, and three Marines were killed by gunfire trying to reach the beach. A tenth Marine died of his wounds while clinging to the burning wreckage. The surviving ten Marines and three Air Force crewmen were forced to swim for two hours before being picked up by the gig
of the arriving Henry B. Wilson. Among the Marine survivors was the battalion's Forward Air Controller, who used an Air Force survival radio
while swimming to direct A-7
air strikes against the island until the battery failed. The second CH-53, Knife 23 was hit by an RPG which blew off the tail section and crash-landed on the East Beach, but it successfully offloaded its 20 Marines and crew of five. They set up a defensive perimeter and the Knife 23 copilot used his survival radio to call in airstrikes, but they would remain cut off from both reinforcements and rescue for twelve hours.
Knife 32 was inbound to the East Beach when it was hit by an RPG and aborted its landing, instead heading out over the West Beach to the Knife 21 crash site where it dumped fuel and proceeded to rescue the three Knife 21 crewmen. Two other sections of the first wave, consisting of the remaining four helicopters, were diverted from the East Beach to the West Beach and eventually landed all of their Marines between 06:30 and 07:00 hours, although the final insertion by Jolly Green 41 required support from an AC-130 Spectre gunship
in order to penetrate the Khmer Rouge fire on its fifth attempt. Knife 32, Jolly Green 41 and Jolly Green 42 eventually landed 81 Marines on the West Beach under the command of the company Executive Officer, and Jolly Green 43 landed 29 Marines of the battalion command post and mortar platoon a kilometer to the southwest. By 07:00 109 Marines and five Air Force crewmen were on Koh Tang, but in three isolated beach areas and in close contact with Khmer Rouge troops. The Marines at the northern end of West Beach attempted to move down the beach to link up with Col Austin's command element to the south, but was beaten back by heavy Khmer Rouge fire which killed LCPL Ashton Loney. While isolated, the Marines were able to use their 81 mm mortars
as fire support for their contingents and devised a makeshift communications network for controlling supporting air strikes by USAF A-7 and F-4
aircraft. It was decided that the platoon isolated on the East Beach should be extracted and following suppressive fire from an AC-130, Jolly Green 13 landed there at 08:15 amid a hail of machine gun fire, but it had landed some 100m away from the Marines who were reluctant to risk running to the helicopter, and Jolly Green 13 took off with its fuel lines ruptured and made an emergency landing in Rayong
, Thailand.
Of the eight helicopters assaulting Koh Tang, three had been destroyed (Knife 21, Knife 23 and Knife 31) and four others damaged too severely to continue operations (Knife 22, Knife 32, Jolly Green 41 and Jolly Green 42) and of the helicopters used in the Mayaguez recapture Jolly Green 13 had been severely damaged in the East Beach rescue attempt. This left only three helicopters (all HH-53s - Jolly Greens 11, 12 and 43) of the original eleven available to bring in the followup forces of BLT 2/9, so the 2 CH-53s (Knife 51 and 52) whose mission had been search and rescue — the last available helicopters — were reassigned to carry troops. The five helicopters picked up 127 Marines of the second wave at U Tapao between 09:00 and 10:00 hours. At 11:50 Knife 52, Knife 51 and Jolly Green 43 arrived over Koh Tang and prepared to land on the East Beach, as Knife 52 approached fire punctured its fuel tanks and the pilot aborted the landing and headed back to U-Tapao leaking fuel. Knife 51 and Jolly Green 43 also abandoned their landings and assumed a holding pattern.
President Ford, at Secretary Kissinger's urging, declined to cancel the scheduled airstrikes on the Cambodian mainland until the Marines on Koh Tang had been withdrawn. At 09:05 A-6A and A-7E aircraft from VA-22
, VA-94
and VA-95 escorted by F-4N fighters of VF-51
and VF-111
aboard the Coral Sea had begun the delayed airstrikes, bombing landing barges and oil storage facilities at Kompong Som and cargo planes and T-28 attack aircraft at Ream airfield and boats at Ream naval base.
The second wave carrying the Marines from Knife 22 and a platoon from Company E had originally taken off at staggered times between 09:00 and 10:00, but with the reversal of course its arrival on Koh Tang was seriously delayed. At 12:10 Knife 51, followed by Jolly Greens 43, 11 and 12 successfully landed 100 additional Marines and evacuated nine wounded on the West Beach, making a total of 225 Marines - 205 on the West Beach and 20 Marines and five Airmen on the East Beach. Around the same time Lt. Col Austin's isolated command unit planned a linkup of its small contingent with the bulk of Golf Company at the northern end of the West Beach. Using mortar fire and A-7
airstrikes to clear Khmer Rouge in the jungle between the two forces, it reached the Golf Company perimeter at 12:45.
By 14:00 firing on the West Beach had reduced substantially as Em Son had moved most of his men back from the beaches with only three man patrols maintaining pressure on the two Marine enclaves. Lt. Col Austin asked the Cricket if he should attempt to push across the island to link up with the isolated unit on the East Beach, but was advised that another helicopter pickup would be attempted first. At 14:15 Jolly Greens 11 and 43 approached East Beach, but were repulsed by heavy fire. Jolly Green 43 had a fuel line damaged, but made an emergency landing on the Coral Sea at 14:36, where it was repaired and returned to service by 17:00 hours. During the attempted landing by Jolly Green 43, fire was seen coming from a semi-submerged Swift Boat that had been shot up by an AC-130 the previous day, A-7 aircraft were called in to destroy the boat with their 20mm cannon. At 16:20 hours, Nail 68, an Air Force OV-10 Forward air control
(FAC) aircraft, arrived and took over the direction of air support. At 16:23 Nail 68 called on the Wilson to use its 5in gun to destroy the semi-submerged Swift Boat. This change in controllers marked a turning point in the quality of airborne firepower available to the Marines, because for the first time that day they had an airborne observer exclusively dedicated to providing accurate and timely close air support. At 17:00 Em Son gathered his forces and moved back up the island to secure an ammunition dump that lay between the West and East Beaches, he was surprised to find the dump intact and no Marines laying in ambush, now resupplied his men would be able to increase the pressure on the Marines again.
At 18:00 as the sun began setting a third attempt to rescue the East Beach force was attempted, using Jolly Green 11 as the rescue ship and with gunfire support from Jolly Green 12, Knife 51 and the gig from the Wilson mounting four M-60s. Nail 68 first ordered gun runs by an AC-130 followed by F-4s and A-7s along the edge of the East Beach, as this was going on five C-130s arrived over Koh Tang carrying "daisy cutter"
bombs — a 15,000-pound device and the largest conventional explosive weapon in the U.S. arsenal at the time. Not seeing any practical use for the BLU-82s, Nail 68 ordered them dropped well south of the Marines' positions. At 18:15 Jolly Green 11 approached the East Beach, but did not actually set down because the hulk of Knife 23 was sitting on the beach; instead, the pilot (1LT Donald Backlund
) skilfully hovered the helicopter several feet off the ground just north of the original beach LZ. The extraction was difficult because the helicopter would see-saw up and down. Only a few Marines at a time could board the helicopter's rear ramp in this fashion by timing their jumps to coincide with the downward motion of the aircraft. Jolly Green 11 was hit numerous times, but managed to transport its cargo of 20 Marines and five Airmen to the Coral Sea. Shortly after Jolly Green 11 evacuated the East Beach, the first BLU-82 was dropped causing a huge explosion and sending a shockwave across the West Beach, Lt. Col Austin quickly called the Cricket with the instruction that no more of the bombs should be dropped. A report from Jolly Green 11 indicated that a Marine might be in the wreckage of Knife 31 and Jolly Green 12 went in to search for any survivors, Jolly Green 12 hovered above the wreck, while a crewman was lowered on a rescue hoist to survey the wreckage, no Marine was recovered and Jolly Green 12 suffered extensive damage in the rescue attempt and flew to the Coral Sea.
As a moonless night fell over Koh Tang, the remaining two helicopters, Knife 51 and the hastily repaired Jolly Green 43, were joined by Jolly Green 44 that had been out of service at its Nakhon Phanom base
but had been repaired and flown to the area. At 18:40 this force began to withdraw the remaining 205 Marines from the West Beach, protected by AC-130 fire and naval gunfire support from the Henry B. Wilson and its gig. The first load of 41 Marines was lifted out at 18:40 hours by Knife 51 and flown to the Coral Sea, followed by 54 taken aboard Jolly Green 43. As Jolly Green 44 picked up a load of 44 Marines, the remaining Marines in the shrinking West Beach perimeter came under intense attack and were in danger of being overrun. The trip to the Coral Sea was a thirty minute round trip, so the pilot (1LT Bob Blough) decided to deliver his Marines to the Harold E. Holt, the nearest ship to Koh Tang, made in complete darkness while hovering over the ship with only its front wheels touching down. Within five minutes Jolly Green 44 returned and picked up 34 more Marines, leaving 32 still on the island, Jolly Green 44 was suffering engine trouble and this time headed for the Coral Sea.
Finally at 20:00 Knife 51 landed and began loading in the dark and under fire. Having loaded everyone save for themselves, Captain Davis and Gunnery Sergeant McNemar combed the beach looking for stragglers. Knife 51 Pararescueman TSGT Wayne Fisk
was at the end of the ramp when two more Marines stumbled out of the darkness, TSGT Fisk asked Captain Davis if all his men were aboard and he confirmed they were, but TSGT Fisk combed the beach one last time for stragglers, finding none, he leaped onto the hovering CH-53 and at 20:10 Knife 51 left Koh Tang for the Coral Sea.
With each withdrawal, the Marines contracted their perimeter on the West Beach. Lance Corporal John S. Standfast, squad leader, 3d Squad, 3d Platoon, Company E and his squad covered Company G's withdrawal during the reduction of the perimeter, and he then singlehandedly directed the pullback of his own squad. Before withdrawing to the safety of the new perimeter, Standfast and his platoon guide, Sergeant Andersen would move forward to the old perimeter to ensure that no member of the company inadvertently had been left behind, each time checking every foxhole. As the Company E commander, Captain Mykle K. Stahl, prepared to board Jolly Green 44 he informed Captain Davis that all of his men were inside the perimeter, not realising that three Marines of an M60 machine gun
team had set up a firing position behind a rocky outcrop beyond the right flank of the perimeter.
Even as Knife 51 left the West Beach, there was confusion as to whether any Marines remained on Koh Tang, the pilot Lt Brims radioed the FAC that some Marines aboard claimed there were still Marines on the ground, but this was soon contradicted by Captain Davis who said that all Marines were off Koh Tang. Two hours after the evacuation was completed, with the Koh Tang Marines dispersed among three Navy ships, the Company E commander, Captain Stahl, discovered that three of his Marines were missing. The Marines checked all of the Navy ships, but could not locate LCpl
Joseph N. Hargrove , PFC
Gary L. Hall, and Pvt
Danny G. Marshall, members of a three man machine gun team which had been assigned to protect the right flank of the constantly shrinking perimeter during the final evacuation. Sergeant Andersen was the last member of the Marine force to see Hall, Hargrove, and Marshall alive at about 20:00 when he ordered them to move back to a new position which was located to the left of the position occupied by Captain Davis.
A rescue operation was proposed using Marine volunteers aboard the only three serviceable helicopters. On the Coral Sea the Commander of Task Force 73, Rear Admiral R. T. Coogan met with Lt. Col Austin and Captain Davis, GSGT McNemar and Lt. Coulter who had just arrived from Subic Bay with a 14 man SEAL
team to consider possible options. Admiral Coogan asked Lt. Coulter to take the Wilson gig ashore in daylight unarmed under a white flag with leaflets dropped and the Wilson broadcasting the crew's intentions to recover the American bodies and determine the status of the missing men if possible, but Lt. Coulter was skeptical and instead proposed taking his team ashore for a night reconnaissance, but this was refused by the Admiral Coogan. Admiral Coogan had to weigh up the order from Seventh Fleet to cease hostile actions against the Khmer Rouge against the lack of evidence that any of the men were still alive, he decided that there would be no rescue mission unless there was some confirmation that the three Marines were still alive. The following morning the Wilson cruised back and forth between the West and East Beaches for three hours broadcasting messages in English, French and Khmer saying that they had no hostile intent, but simply wished to retrieve any U.S. personnel dead or alive on the Koh Tang and would send an unarmed boat ashore if the Khmer Rouge signalled them. Half of the Wilson crew was on deck scanning the beaches and jungle for any sign of the missing Marines, but no signal was received from the Khmer Rouge or the missing Marines. With no indication that the three Marines were still alive and the certainty that more lives would be lost in any forced rescue attempt, a return to Koh Tang was ruled out and the Wilson departed the area. Hargrove, Hall, and Marshall were declared Missing in Action and then on 21 July 1976 their status was changed to Killed in Action (Body Not Recovered).
In 1985, an eyewitness report indicated that a wounded American had been captured on Koh Tang after the assault and was subsequently executed. In 1999 Em Son approached the Joint Task Force-Full Accounting (JTF-FA) on learning that they were looking for further information regarding the events on Koh Tang. Em Son advised that on the morning on 16 May he ordered his men to search the West Beach for any remaining Americans. About 100m from the beach one of the Khmer Rouge was hit by M-16 fire, the Khmer Rouge then fired mortars and encircled the firing position capturing one American with a leg wound, Em Son's description of the American matched that of Lcpl Joseph Hargrove. The Khmer Rouge continued their search and located an abandoned M-60 machine gun, various equipment and the covered body of a black American soldier. Em Son ordered the dead American (presumably LCPL Ashton Loney) buried and the prisoner taken to his HQ, when Em Son was advised that the Khmer Rouge hit by M-16 fire had died, he ordered the American to be shot. Approximately one week after the assault, Em Son's men noticed that their leftover food was being disturbed and on searching they found bootprints in the mud, they set up a night ambush and on the third night they captured two Americans matching the descriptions of PFC Gary Hall and Pvt Danny Marshall. Em Son radioed Kampong Som and was ordered to deliver the Americans to the mainland. The following morning the two Americans were taken by boat the to mainland and then driven to the Ti Nean Pagoda above Sihanoukville where they were stripped to their underwear and shackled. After one week, on orders from Phnom Penh, each American was beaten to death with a B-40 rocket launcher, the body of Hall was buried in a shallow grave near the beach while that of Marshall was dumped on beach cove
Recovery efforts in 1999 by the JTF-FA later found bone fragments that might have belonged to the Hall and Marshall, but DNA tests proved inconclusive due to the small size of the fragments. Hargrove, Hall, and Marshall all received Purple Heart
s from the Marine Corps, however, Hargrove's family did not receive the award until 1999, after investigative journalist and author Ralph Wetterhahn published several articles in popular magazines about his findings.
In 2007, Hargrove's cousin, Cary Turner, began a campaign to have Joint POW/MIA Accounting Command (JPAC), the successor agency to JTF-FA, return to Koh Tang to search for Hargrove's remains. In October 2008 JPAC, was reported to have found four sets of remains in an area indicated by Em Son as being where the American suspected to be Hargrove was buried. One of the sets of remains was said to be Caucasian in nature, but DNA analysis was needed before the identity could be confirmed.
A number of US personnel were awarded medals following the events, including:
Four Airmen were awarded the Air Force Cross
:
Between 1991 and 1999, U.S. and Cambodian investigators conducted seven joint investigations, led by the Joint Task Force-Full Accounting. On three occasions Cambodian authorities unilaterally turned over remains believed to be those of American servicemen. In October and November 1995, U.S. and Cambodian specialists conducted an underwater recovery of the Knife 31 crash site where they located numerous remains, personal effects and aircraft debris associated with the loss. The , a Navy salvage vessel, enabled the specialists to conduct their excavation offshore. In addition to the support provided by the Cambodian government, the Government of Vietnam also interviewed two Vietnamese informants in Ho Chi Minh City who turned over remains that were later positively identified. As a result of these investigations the remains of 2LT Richard Vandegeer, LCPL Gregory S Copenhaver, LCPL Andres Garcia, PFC Lynn Blessing, PFC Walter Boyd, PFC Antonio R Sandoval and PFC Kelton R. Turner were identified.
had been the basis for many decisions made during the crisis. Vice Admiral George P. Steele, the Seventh Fleet commander later stated that: "The sad part of the Mayaguez is that we had sufficient force coming up with the Seventh Fleet, after it had been turned around from the evacuation of Vietnam stand down, to seize Southern Cambodia. I begged for another day or two, rather than commit forces piecemeal as we did .... The idea that we could use U.S. Air Force air police and Air Force helicopters as an assault force appears to me as ridiculous today as it did then."
When many of the coordination and communications problems arose again during Operation Eagle Claw
, the hostage rescue mission in Iran
in 1980, significant changes in joint and special operations were brought about.
Khmer Rouge
The Khmer Rouge literally translated as Red Cambodians was the name given to the followers of the Communist Party of Kampuchea, who were the ruling party in Cambodia from 1975 to 1979, led by Pol Pot, Nuon Chea, Ieng Sary, Son Sen and Khieu Samphan...
and the United States from May 12–15, 1975, was the last official battle of the Vietnam War
Vietnam War
The Vietnam War was a Cold War-era military conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. This war followed the First Indochina War and was fought between North Vietnam, supported by its communist allies, and the government of...
. The names of the Americans killed, as well as those of three Marines
United States Marine Corps
The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...
who were left behind on the island of Koh Tang
Koh Tang
Koh Tang is an island off the coast of Preah Sihanouk Province in the Gulf of Thailand. The island is approximately 43 km southwest off the coast of Cambodia...
after the battle and who were subsequently executed by the Khmer Rouge, are the last names on the Vietnam Veterans Memorial
Vietnam Veterans Memorial
The Vietnam Veterans Memorial is a national memorial in Washington, D.C. It honors U.S. service members of the U.S. armed forces who fought in the Vietnam War, service members who died in service in Vietnam/South East Asia, and those service members who were unaccounted for during the War.Its...
. The merchant ship's crew, whose seizure at sea had prompted the U.S. attack, had been released in good health, unknown to the U.S. Marines or the U.S. command of the operation, before the Marines attacked. It was the only known engagement between U.S. ground forces and the Khmer Rouge.
Khmer Rouge seize the Mayaguez
The crisis began on the afternoon of May 12, 1975, as the American container ship SS MayaguezSS Mayagüez
SS Mayaguez was a U.S.-flagged container ship that attained notoriety for its 12 May 1975 seizure by Khmer Rouge forces of Cambodia, which resulted in a confrontation with the United States at the close of the Vietnam War....
passed near Poulo Wai island en route to Sattahip, Thailand in recognized international sea lanes claimed as territorial waters by Cambodia. At 14:18, a Khmer Rouge naval forces "Swift Boat
Fast Patrol Craft
Patrol Craft Fast , also known as Swift Boats, were all-aluminum, long, shallow-draft vessels operated by the U.S. Navy, initially to patrol the coastal areas and later for work in the interior waterways as part of the Brown Water Navy to interdict Vietcong movement of arms and munitions,...
" was sighted approaching the Mayaguez. The Khmer Rouge fired across the bow of the Mayaguez and when Captain Charles T. Miller ordered the engine room to slow down to maneuvering speed to avoid the machine-gun fire, the Khmer Rouge then fired a rocket-propelled grenade across the bow of the ship. Captain Miller ordered the transmission of an SOS
SOS
SOS is the commonly used description for the international Morse code distress signal...
and then stopped the ship. Seven Khmer Rouge soldiers boarded the Mayaguez and their leader, Battalion Commander Sa Mean, pointed at a map indicating that the ship should proceed to the east of Poulo Wai. One of the crew members broadcast a Mayday
Mayday (distress signal)
Mayday is an emergency procedure word used internationally as a distress signal in voice procedure radio communications. It derives from the French venez m'aider, meaning "come help me"....
which was picked up by an Australian vessel. The Mayaguez arrived off Poulo Wai at approximately 16:00 and a further 20 Khmer Rouge boarded the vessel. Sa Mean indicated that the Mayaguez should proceed to Ream on the Cambodian mainland, but Captain Miller showed that the ship's radar was not working and pantomimed the ship hitting rocks and sinking. Sa Mean radioed his superiors and was apparently instructed to stay at Poulo Wai, dropping anchor at 4:55pm.
President Ford reacts
The Mayaguezs SOS and Mayday signals were picked up by a number of listeners including an employee of Delta Exploration Company in JakartaJakarta
Jakarta is the capital and largest city of Indonesia. Officially known as the Special Capital Territory of Jakarta, it is located on the northwest coast of Java, has an area of , and a population of 9,580,000. Jakarta is the country's economic, cultural and political centre...
, Indonesia who notified the US Embassy in Jakarta. By 05:12 Eastern Standard Time
Eastern Time Zone
The Eastern Time Zone of the United States and Canada is a time zone that falls mostly along the east coast of North America. Its UTC time offset is −5 hrs during standard time and −4 hrs during daylight saving time...
(EST) the first news of the incident reached the National Military Command Center
National Military Command Center
Located in the Pentagon, the National Military Command Center houses the logistical and communications center for the National Command Authority of the United States of America. The facility, which is composed of several war rooms, is the principal command and control center of the Department of...
(NMCC) in Washington D.C.
U.S. President Gerald Ford
Gerald Ford
Gerald Rudolph "Jerry" Ford, Jr. was the 38th President of the United States, serving from 1974 to 1977, and the 40th Vice President of the United States serving from 1973 to 1974...
was informed of the seizure of the Mayaguez at his morning briefing with his deputy assistant for national security affairs, Brent Scowcroft
Brent Scowcroft
Brent Scowcroft, KBE was the United States National Security Advisor under Presidents Gerald Ford and George H. W. Bush and a Lieutenant General in the United States Air Force. He also served as Military Assistant to President Richard Nixon and as Deputy Assistant to the President for National...
. At 12:05 EST (21:05 Cambodia), a meeting of the National Security Council
National Security Council
A National Security Council is usually an executive branch governmental body responsible for coordinating policy on national security issues and advising chief executives on matters related to national security...
(NSC) was convened to discuss the situation. Meanwhile the NMCC ordered Admiral Noel Gayler
Noel Gayler
Noel Arthur Meredyth Gayler was an Admiral in the United States Navy, who served as the sixth Director of the National Security Agency from 1969 to 1972, and ninth Commander of Pacific Command from 1972 to 1976. Gayler was awarded three Navy Cross medals as a World War II flying ace and is credited...
, Commander in Chief, United States Pacific Command
United States Pacific Command
The United States Pacific Command is a Unified Combatant Command of the United States armed forces responsible for the Pacific Ocean area. It is led by the Commander, Pacific Command , who is the supreme military authority for the various branches of the Armed Forces of the United States serving...
(CINCPAC), to launch reconnaissance aircraft to locate the Mayaguez. The members of the NSC were determined to end the crisis decisively, believing that the fall of South Vietnam less than two weeks before and the forced withdrawal of the United States from Cambodia, (Operation Eagle Pull
Operation Eagle Pull
Operation Eagle Pull was the American evacuation by air of Phnom Penh, Cambodia, on 12 April, 1975. At the beginning of April 1975, Phnom Penh, the last remaining stronghold of the Khmer Republic, was surrounded by the Khmer Rouge and totally dependent on aerial resupply through Pochentong Airport...
) and South Vietnam (Operation Frequent Wind
Operation Frequent Wind
Operation Frequent Wind was the evacuation by helicopter of American civilians and 'at-risk' Vietnamese from Saigon, South Vietnam, on 29–30 April 1975 during the last days of the Vietnam War...
) had severely damaged the U.S.'s reputation. They also wished to avoid comparisons to the Pueblo incident
USS Pueblo (AGER-2)
USS Pueblo is an American ELINT and SIGINT Banner-class technical research ship which was boarded and captured by North Korean forces on January 23, 1968, in what is known as the Pueblo incident or alternatively as the Pueblo crisis or the Pueblo affair. Occurring less than a week after President...
of 1968, where the failure to promptly use military force to halt the hijacking of a US intelligence ship by North Korea
North Korea
The Democratic People’s Republic of Korea , , is a country in East Asia, occupying the northern half of the Korean Peninsula. Its capital and largest city is Pyongyang. The Korean Demilitarized Zone serves as the buffer zone between North Korea and South Korea...
led to an eleven-month hostage situation. It was determined that keeping the Mayaguez and its crew away from the Cambodian mainland was essential. As the United States had no diplomatic contact with the Khmer Rouge regime in Cambodia, President Ford instructed Secretary of State Henry Kissinger
Henry Kissinger
Heinz Alfred "Henry" Kissinger is a German-born American academic, political scientist, diplomat, and businessman. He is a recipient of the Nobel Peace Prize. He served as National Security Advisor and later concurrently as Secretary of State in the administrations of Presidents Richard Nixon and...
to urge the People's Republic of China to persuade the Khmer Rouge to release the Mayaguez and its crew.
Following the NSC meeting the White House issued a press release stating that President Ford considered the seizure an act of "piracy
Piracy
Piracy is an act of robbery or criminal violence at sea. The term can include acts committed on land, in the air, or in other major bodies of water or on a shore. It does not normally include crimes committed against persons traveling on the same vessel as the perpetrator...
". Secretary of Defense, James R. Schlesinger
James R. Schlesinger
Dr. James Rodney Schlesinger is an American politician. He is best known for serving as Secretary of Defense from 1973 to 1975 under Presidents Richard Nixon and Gerald Ford...
ordered the military to locate the Mayaguez and prevent its movement to the Cambodian mainland, employing munitions (including tear gas and sea mines) if necessary.
Secretary of State Kissinger sent a message to the Chinese Liaison Office in Washington demanding the immediate release of the Mayaguez and its crew, but the chief of the Liaison Office refused to accept the note. Kissinger then instructed George H. W. Bush
George H. W. Bush
George Herbert Walker Bush is an American politician who served as the 41st President of the United States . He had previously served as the 43rd Vice President of the United States , a congressman, an ambassador, and Director of Central Intelligence.Bush was born in Milton, Massachusetts, to...
, then head of the U.S. Liaison Office in Beijing, to deliver the note to the Chinese Foreign Ministry and to pass on an oral message that "The Government of the United States demands the immediate release of the vessel and of the full crew. If that release does not immediately take place, the authorities in Phnom Penh will be responsible for the consequences."
U.S. rescue preparations
Following Secretary Schlesinger's instructions, P-3 OrionP-3 Orion
The Lockheed P-3 Orion is a four-engine turboprop anti-submarine and maritime surveillance aircraft developed for the United States Navy and introduced in the 1960s. Lockheed based it on the L-188 Electra commercial airliner. The aircraft is easily recognizable by its distinctive tail stinger or...
aircraft stationed at Naval Air Station Cubi Point
Naval Air Station Cubi Point
U.S. Naval Air Station Cubi Point was a United States Navy aerial facility located at the edge of Naval Base Subic Bay and abutting the Bataan Peninsula in the Philippines.- History :...
in the Philippines and at U-Tapao Royal Thai Navy Airfield
U-Tapao Royal Thai Navy Airfield
U-Tapao Royal Thai Navy Airfield is a military airfield of the Royal Thai Navy located approximately southeast of Bangkok, near Sattahip on the Gulf of Siam...
in Thailand took off to locate the Mayaguez. The aircraft carrier
Aircraft carrier
An aircraft carrier is a warship designed with a primary mission of deploying and recovering aircraft, acting as a seagoing airbase. Aircraft carriers thus allow a naval force to project air power worldwide without having to depend on local bases for staging aircraft operations...
, then en route to Australia, was ordered into the area. The destroyer escort and the guided missile destroyer were both ordered to proceed at high speed from the Philippine Sea
Philippine Sea
The Philippine Sea is a marginal sea east and north of the Philippines occupying an estimated surface area of 2 million mi² on the western part of the North Pacific Ocean...
towards the Mayaguezs last known location.
An alert order was sent to 1st Battalion 4th Marines
1st Battalion 4th Marines
1st Battalion, 4th Marines is an infantry battalion in the United States Marine Corps based out of Marine Corps Base Camp Pendleton, California consisting of approximately 1000 Marines and sailors...
(1/4 Marines) at Subic Bay
U.S. Naval Base Subic Bay
U.S. Naval Base Subic Bay was a major ship-repair, supply, and rest and recreation facility of the United States Navy located in Zambales, Philippines. It was the largest U.S...
and to the 9th Marine Regiment on Okinawa
Okinawa Prefecture
is one of Japan's southern prefectures. It consists of hundreds of the Ryukyu Islands in a chain over long, which extends southwest from Kyūshū to Taiwan. Okinawa's capital, Naha, is located in the southern part of Okinawa Island...
. A reinforced company from 1/4 Marines was ordered to assemble at Naval Air Station Cubi Point
Naval Air Station Cubi Point
U.S. Naval Air Station Cubi Point was a United States Navy aerial facility located at the edge of Naval Base Subic Bay and abutting the Bataan Peninsula in the Philippines.- History :...
for airlift to Thailand, while an 1100 man Battalion Landing Team (BLT) assembled in Okinawa.
Locating and stopping the Mayaguez
On the early morning of May 13, the P-3 Orions identified large radar returns near Poulo Wai and dropped flares on the suspected location of the Mayaguez provoking Khmer Rouge gunfire. Low on fuel the two Orions returned to base and were replaced with another Orion from Patrol Squadron 17. At 08:16 local time the Orion made a low pass over Poulo Wai positively identifying the Mayaguez and again drawing Khmer Rouge gunfire.Shortly after the Orion made its low pass the Khmer Rouge leader, Sa Mean, ordered Captain Miller to get the Mayaguez under way. At 08:45 the Mayaguez set off towards the northeast following one of the Swift Boats. The Orion continued to track the Mayaguez as it left Poulo Wai. Once the location of the Mayaguez was identified, Admiral Gayler ordered the commander of the Seventh Air Force
Seventh Air Force
The Seventh Air Force is a numbered air force of the United States Air Force Pacific Air Forces . It is headquartered at Osan Air Base, Republic of Korea....
, Lieutenant General John J. Burns, at Nakhon Phanom Royal Thai Air Force Base
Nakhon Phanom Royal Thai Air Force Base
Nakhon Phanom Royal Thai Navy Base , formerly Nakhon Phanom Royal Thai Air Force Base, is a Royal Thai Navy facility used for riverine patrols along the Mekong River. It is located approximately 365 miles northeast of Bangkok, 9 miles west of Nakhon Phanom city in Nakhon Phanom Province in the...
to move combat aircraft to the area. At 13:00 two unarmed F-111 fighter-bombers diverted from a training mission began making low-level high-speed passes by the Mayaguez. Once the F-111s had left Sa Mean ordered Captain Miller to follow the Swift Boats around Koh Tang
Koh Tang
Koh Tang is an island off the coast of Preah Sihanouk Province in the Gulf of Thailand. The island is approximately 43 km southwest off the coast of Cambodia...
and drop anchor approximately 1.5 km north of the island. Two F-4 Phantoms soon arrived over the Mayaguez and began firing their 20mm cannon
M61 Vulcan
The M61 Vulcan is a hydraulically or pneumatically driven, six-barreled, air-cooled, electrically fired Gatling-style rotary cannon which fires 20 mm rounds at an extremely high rate. The M61 and its derivatives have been the principal cannon armament of United States military fixed-wing aircraft...
into the water in front of the ship. The F-4s were followed by A-7Ds and more F-111s which continued to fire into the sea in front of and behind the ship indicating that no further movement should be attempted.
At 16:15 the Khmer Rouge ordered the Mayaguez crew onto two fishing boats which then took them closer to the shore of Koh Tang.
The rescue forces assemble
The Coral Sea, the Holt and the Wilson were all scheduled to arrive on station by 15 May, but none of these ships carried any troops. The carried a Marine contingent but could not arrive on station until 16 May, while the also carried Marines but could not arrive until 18 May.III Marine Amphibious Force
III Marine Expeditionary Force
The III Marine Expeditionary Force is a Marine Air-Ground Task Force of the United States Marine Corps that is forward-deployed and able to deploy rapidly and conduct operations across the spectrum from humanitarian assistance and disaster relief to amphibious assault and high intensity combat. III...
(III MAF) assigned Task Force 79.9 with recovering the Mayaguez and designated D Company 1/4 Marines in the Philippines as the unit that would actually retake the Mayaguez, but General Burns wanted additional force and orders were sent to the III Marine Division on Okinawa. 1st Battalion, 9th Marines
1st Battalion 9th Marines
The 1st Battalion 9th Marines is an infantry battalion of the United States Marine Corps. Formed during World War I, it served until the mid-1990s when it was deactivated to make room for one of three light armor reconnaissance battalions...
(BLT 1/9) was then on alert as the primary "air contingency" reaction force, but most of BLT 1/9, were ending their tours of duty and were not subject to further extension of their tours except in the case of emergency. III MAF requested the extension of BLT 1/9's tour but this was refused. 2nd Battalion, 9th Marines
2nd Battalion 9th Marines
The 2nd Battalion, 9th Marines is an infantry battalion of the United States Marine Corps. Formed during World War I, the unit played an instrumental role in the defeat of the Japanese forces in the Battles of Guam and Iwo Jima during the World War II...
(BLT 2/9) (commanded by Lieutenant Colonel Randall W. Austin), was then in a training exercise on Okinawa and it received orders on the night of 13 May to return to camp and prepare for departure by air at dawn on 14 May. On the morning of 14 May BLT 2/9 boarded Air Force C-141s at Kadena Air Base
Kadena Air Base
, is a United States Air Force base in the towns of Kadena and Chatan and the city of Okinawa, in Okinawa Prefecture, Japan. Kadena Air Base is the hub of U.S. airpower in the Pacific, and home to the USAF's 18th Wing and a variety of associate units.-Units:The 18th Wing is the host unit at Kadena...
to fly to Thailand. The 9th Marine Regiment had been the first U.S. ground combat force committed to the Vietnam War
Vietnam War
The Vietnam War was a Cold War-era military conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. This war followed the First Indochina War and was fought between North Vietnam, supported by its communist allies, and the government of...
in 1965, but in May 1975 only a few of the officers and NCOs from BLT 2/9 had seen combat in Vietnam.
Nine USAF
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...
HH-53
MH-53 Pave Low
The Sikorsky MH-53 Pave Low series is a long-range combat search and rescue helicopter for the United States Air Force. The series was upgraded from the HH-53B/C, variants of the Sikorsky CH-53 Sea Stallion. The HH-53 "Super Jolly Green Giant" was initially developed to replace the HH-3 "Jolly...
Jolly Green helicopters of the 40th Aerospace Rescue and Recovery Squadron
40th Aerospace Rescue and Recovery Squadron
40th Aerospace Rescue and Recovery Squadron was a helicopter rescue squadron of the USAF active during the Vietnam War.-History:...
and 10 CH-53 Knifes of the 21st Special Operations Squadron
21st Special Operations Squadron
The 21st Special Operations Squadron is a unit within the 352d Special Operations Group , United States Air Force, United States European Command, and was based at Royal Air Force base RAF Mildenhall in Suffolk, eastern England.-Mission:...
were available at Nakhon Phanom in Thailand for the rescue operation. There were differences between the two types which would become relevant during the battle: the HH-53 was air-refuelable, had 450-gallon foam-filled tip tanks, a tail Minigun
Minigun
The Minigun is a 7.62 mm, multi-barrel heavy machine gun with a high rate of fire , employing Gatling-style rotating barrels with an external power source...
with armor plating, and two waist Miniguns. The CH-53 was not air-refuelable, but had 650-gallon non-foam-filled tip tanks and two Miniguns, although no tail gun. Thus, the HH-53's fuel tanks were less vulnerable to ground fire and with its refueling capability, could remain in the battle area indefinitely as long as it had access to a tanker.
On May 13, General Burns and his Seventh Air Force staff developed a contingency plan to retake the Mayaguez using an assault force composed of men of the 56th Air Force Security Squadron. 75 volunteers from the 56th would be dropped onto the containers on the decks of the Mayaguez on the morning of 14 May. In preparation for this assault five HH-53s and seven CH-53s were ordered to proceed to U-Tapao Royal Thai Navy Airfield
U-Tapao Royal Thai Navy Airfield
U-Tapao Royal Thai Navy Airfield is a military airfield of the Royal Thai Navy located approximately southeast of Bangkok, near Sattahip on the Gulf of Siam...
for staging. At approximately 21:30, one of the 21st SOS CH-53s (68-10933, call sign Knife 13) crashed, killing 18 security police and its five-man crew.
President Ford chaired an NSC meeting at 10:22 EST (21:22 Cambodia), where the Air Force rescue plan was cancelled due to the accident and the fact that the containers on the Mayaguez could not bear the weight of the helicopters while rappelling
Abseiling
Abseiling , rappelling in American English, is the controlled descent down a rock face using a rope; climbers use this technique when a cliff or slope is too steep and/or dangerous to descend without protection.- Slang terms :...
men down would expose them to gunfire. It was decided that it was necessary to wait for the Navy ships to arrive off Koh Tang and for the Marines to assemble in Thailand before a rescue attempt would be mounted. President Ford ordered the Air Force to stop any Cambodian boats moving between Koh Tang and the mainland.
Early on the morning of May 14, the Khmer Rouge loaded the Mayaguez crew onto one of the fishing boats and they left Koh Tang following two of the Swift boats on a heading for Kampong Som. Two F-111s swept past the fishing boat, followed by a pair of F-4s and a pair of A-7s, which began firing in front of the Swift boats and then directly at the Swift boats, causing one of them to turn back to Koh Tang. The jets were then joined by an AC-130H Spectre gunship from the 388th Tactical Fighter Wing which proceeded to engage the second Swift boat with its cannons. An A7D then sprayed the Swift boat with its 20mm cannon, sinking it. The fighters then came at the fishing boat dropping bombs and firing their cannon into the water in front of it and spraying the boat with shrapnel. The fighter crews then reported back that 30 to 40 Caucasians had been seen on board the fishing boat.
In Washington President Ford convened another NSC meeting at 22:30 EST (09:30 14 May Cambodia). A communication link had been established between the White House, Seventh Air Force at Nakhon Phanom, CINCPAC in Hawaii and the aircraft orbiting above Koh Tang allowing for near real-time communications. The orbiting fighters reported that they could try to shoot the rudder off the fishing boat to stop its progress to Kampong Som, but the NSC decided that the risk of killing the Mayaguez crew was too great. At 23:00 EST (10:00 Cambodia) President Ford ordered that only riot-control agents should be dropped on or near the fishing boat, while all patrol boats should be sunk.
The NSC meeting continued to consider the appropriate course to resolve the crisis. It was informed that the Chinese Foreign Ministry in Beijing had refused to pass on the American note intended for the Khmer Rouge, but George Bush reported that they had read the note and that it might have been relayed to the Khmer Rouge. With a diplomatic solution appearing unlikely, General David Jones
David Charles Jones
David Charles Jones is a retired U.S. Air Force general and former Chairman of the Joint Chiefs of Staff.Jones was born in Aberdeen, South Dakota and raised in Minot, North Dakota, where he graduated from Minot High School....
, acting Chairman of the Joint Chiefs of Staff
Chairman of the Joint Chiefs of Staff
The Chairman of the Joint Chiefs of Staff is by law the highest ranking military officer in the United States Armed Forces, and is the principal military adviser to the President of the United States, the National Security Council, the Homeland Security Council and the Secretary of Defense...
, presented the NSC with a range of military options. Rescue planning was complicated by the uncertainty surrounding the location of the Mayaguez crew, it was believed that some were still on the ship, some on Koh Tang and others were on the fishing boat bound for Kampong Som. The NSC decided to proceed with a simultaneous attack by Marines to retake the Mayaguez and attack Koh Tang, together with attacking Cambodian shipping and bombing mainland targets.
At 10:10, despite having been hit by tear gas, the fishing boat arrived at Kampong Som. The Khmer Rouge commander at Kampong Som, apparently fearing attack by the Americans, refused to accept responsibility for the Mayaguez crew and so the fishing boat moved further down the coast, dropping anchor off the island of Rong Sam Lem. The orbiting fighters lost track of the fishing boat once it entered the port at Kampong Som, and so this was the location transmitted up the chain of command. At 11:29, U.S. aircraft sank another patrol boat and damaged another four.
1/4 Marines had arrived at U-Tapao from the Philippines at 05:45 on May 14 and had been waiting on standby for a helicopter assault on the Mayaguez, but as the news of the arrival of the fishing boat at Kampong Som came in the helicopter assault was cancelled. At 14:00 BLT 1/9 began arriving at U-Tapao.
The rescue plan
On the afternoon of 14 May, General Burns received the order to proceed with a simultaneous assault on Koh Tang and the Mayaguez timed to begin just before sunrise (05:42) on 15 May. D Company 1/4 Marines would retake the Mayaguez while BLT 1/9 Marines would rescue the crew on Koh Tang. With minimal intelligence available regarding the geography of Koh Tang, the commander of BLT 2/9 and his staff took off in a U-21 to make an aerial reconnaissance of the island. Arriving over Koh Tang at 16:00, they were prevented from closely approaching the island in order not to compromise the secrecy of the mission or draw ground fire, but they determined that the island was so covered in jungle that the only two viable landing zones available were beaches on the west and east shores of the northern portion of Koh Tang.At 21:00 the rescue plan was finalised. 600 Marines from BLT 2/9 — composed of Golf and Echo Companies — were assigned to conduct a combat assault in five CH-53 Knifes and three HH-53 Jolly Greens to seize and hold Koh Tang. Two helicopters would make a diversionary assault on the West Beach, while six helicopters would make the main assault on the wider East Beach. The East Beach force would move to the nearby compound where the Mayaguez crew was believed to be held and then move across and link up with the West Beach force. Two more waves of helicopters would be required to deploy all of BLT 2/9 to Koh Tang, the flight from U Tapao to Koh Tang was a four-hour round trip. It was estimated that only 20-30 Khmer Rouge were on Koh Tang; the information regarding the heavy anti-aircraft fire coming from Koh Tang and the number of gunboats present was not passed on to the Marines. A unit of 57 Marines from Delta Company, 1/4 Marines together with volunteers from Military Sealift Command
Military Sealift Command
The Military Sealift Command is a United States Navy organization that controls most of the replenishment and military transport ships of the Navy. It first came into existence on 9 July 1949 when the Military Sea Transportation Service became solely responsible for the Department of Defense's...
to get the Mayaguez under way, an explosive ordnance disposal team and a Cambodian linguist would be transferred by three HH-53 Jolly Greens to the Holt which was scheduled to arrive on station at dawn for a ship-to-ship boarding of the Mayaguez one hour after the assault on Koh Tang began. Two additional CH-53s (because of their superior firepower, all the HH-53s were used for troop lift) were tasked as Combat Search and Rescue
Combat search and rescue
Combat search and rescue are search and rescue operations that are carried out during war that are within or near combat zones.A CSAR mission may be carried out by a task force of helicopters, ground-attack aircraft, tankers and an airborne command post...
helicopters, supported by an HC-130
HC-130
The Lockheed HC-130 is an extended-range, search and rescue and Combat search and rescue version of the C-130 Hercules transport. The HC-130H and HC-130J versions are operated by the United States Coast Guard in a SAR and maritime reconnaissance role. The HC-130P and HC-130N Combat King models...
"King" command-and-control aircraft.
The Wilson was assigned to support the Koh Tang operation, and, after retaking the Mayaguez, the Holt would be deployed in a blocking position between Koh Tang and the Cambodian mainland with the mission of intercepting and engaging any Khmer reaction forces. Navy aircraft from the Coral Sea were given the mission of striking targets on the Cambodian mainland to prevent interference with the rescue.
At 15:52 EST (02:52 15 May Cambodia), President Ford convened the fourth and final NSC meeting regarding the Mayaguez. General Jones briefed the NSC on the assault plan and plans for strikes by Guam
Andersen Air Force Base
Andersen Air Force Base is a United States Air Force base located approximately northeast of Yigo in the United States territory of Guam....
-based B-52s on the port facilities at Kampong Som and the naval base at Ream. Concerned that the use of B-52s might be excessive, President Ford limited the bombing to attacks by carrier-based aircraft commencing at 07:45 (Cambodia) and gave the go-ahead to the rescue plan.
The Khmer Rouge on Koh Tang
Unknown to the Americans then converging on Koh Tang, none of the Mayaguez crew was on the island and it was heavily defended by over 100 Khmer Rouge. The Khmer Rouge defenses on Koh Tang were intended to counter the Vietnamese, not the Americans. Following the Fall of SaigonFall of Saigon
The Fall of Saigon was the capture of Saigon, the capital of South Vietnam, by the People's Army of Vietnam and the National Liberation Front on April 30, 1975...
, the Vietnam People's Army
Vietnam People's Army
The Vietnam People's Army is the armed forces of Vietnam. The VPA includes: the Vietnamese People's Ground Forces , the Vietnam People's Navy , the Vietnam People's Air Force, and the Vietnam Marine Police.During the French Indochina War , the VPA was often referred to as the Việt...
moved quickly to take control of a number of islands formerly controlled by South Vietnam
South Vietnam
South Vietnam was a state which governed southern Vietnam until 1975. It received international recognition in 1950 as the "State of Vietnam" and later as the "Republic of Vietnam" . Its capital was Saigon...
and other islands contested between Vietnam and Cambodia. The Khmer Rouge commander of Kampong Som District, Em Son, was also given responsibility for securing Koh Tang and on 1 May he took a force of 100 men to Koh Tang to defend the island against attack by the Vietnamese. Sa Mean was given responsibility for the defense of Poulo Wai.
On the East Beach two heavy machine guns had been dug in at each end of the beach and fortified firing positions had been built every 20 metres behind a sand berm connected by a shallow zig-zag trench. Two M60 machine gun
M60 machine gun
The M60 is a family of American general-purpose machine guns firing 7.62×51mm NATO cartridges from a disintegrating belt of M13 links...
s, B-40 rockets and two DK-82 mortar/grenade launchers were in the firing positions. On the West Beach a heavy machine gun, an M-60, B-40 rockets and a 75mm recoilless rifle were dug into connected firing positions. North of each beach was a 60mm mortar and south of the beaches was an 81mm mortar that could fire on either beach. Ammunition was stored in dug-in bunkers one behind each beach, with a third ammunition dump located near Em Son's command post in the jungle south of the beaches.
The Mayaguez crew on Rong Sam Lem
On their arrival at Rong Sam Lem Captain Miller was taken to the senior Khmer Rouge commander where he was subject to a cursory interrogation before being asked if he could talk to the American planes from the Mayaguez. The Khmer Rouge explained that they had already lost three boats and numerous men and were obviously anxious to call off the American bombers. Captain Miller explained that if they returned to the ship and restarted its engines they could then generate electricity to call their office in Bangkok which could then contact the U.S. military. The Khmer Rouge radioed instructions to their higher command and then gave approval for Captain Miller and nine men to return to the Mayaguez. As darkness was falling it was decided that they would return to the Mayaguez the following morning, 15 May.Retaking the Mayaguez
At 06:13 on May 15, the first phase of the operation began with the transfer by three HH-53s of D/1/4 Marines to the Holt. As the Holt slowly came alongside, USAF A-7DA-7 Corsair II
The Ling-Temco-Vought A-7 Corsair II is a carrier-based subsonic light attack aircraft introduced to replace the United States Navy's Douglas A-4 Skyhawk, initially entering service during the Vietnam War...
aircraft saturated the Mayaguez with tear gas munitions. Equipped with gas masks, the Marines at 07:25 hours then conducted one of the few hostile ship-to-ship boardings
Boarding (attack)
Boarding, in its simplest sense, refers to the insertion on to a ship's deck of individuals. However, when it is classified as an attack, in most contexts, it refers to the forcible insertion of personnel that are not members of the crew by another party without the consent of the captain or crew...
by the U.S. Navy since the American Civil War
American Civil War
The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...
, securing the vessel after an hour-long search, finding it empty.
The assault on Koh Tang
At 06:12, the eight helicopters (five CH-53 Knifes and three HH-53 Jolly Greens) of the Koh Tang assault force approached the two Landing zoneLanding Zone
A Landing Zone or "LZ" is a military term for any area where an aircraft can land.In the United States military, a landing zone is the actual point where aircraft land...
s (LZs) on Koh Tang. At the West Beach, the first section of two CH-53 helicopters came in at 06:20 hours. The first helicopter; Knife 21, landed safely, but while offloading its Marines came under heavy automatic weapons fire, destroying an engine. It managed to take off, protected by suppressive fire from the second CH-53, Knife 22, and ditched 1.6 km offshore. Knife 22 was damaged so severely that it turned back with its Marines (including the Golf Company commander) still aboard escorted by Jolly Green 11 and Jolly Green 12, and crash-landed in Trat Province
Trat Province
Trat is a province of Thailand. It is located in the east of Thailand, and has borders with Chanthaburi Province to the northwest, Cambodia to the east, and the Gulf of Thailand to the south.Trat is most famous for gemstone mining and trading....
on the Thai coast, where its passengers were picked up by Jolly Green 12 and returned to U Tapao.
At 06:30, the CH-53s approaching the East Beach encountered intense automatic weapons and RPG
Rocket propelled grenade
A rocket-propelled grenade is a shoulder-fired, anti-tank weapon system which fires rockets equipped with an explosive warhead. These warheads are affixed to a rocket motor and stabilized in flight with fins. Some types of RPG are reloadable while others are single-use. RPGs, with the exception of...
fire from entrenched Khmer Rouge. Knife 31 was hit by two RPGs, which ignited its left fuel tank and ripped away the nose of the helicopter, it crashed in a fireball fifty meters offshore. A pilot, five Marines, and two Navy corpsmen were killed in the crash, another Marine drowned swimming from the wreck, and three Marines were killed by gunfire trying to reach the beach. A tenth Marine died of his wounds while clinging to the burning wreckage. The surviving ten Marines and three Air Force crewmen were forced to swim for two hours before being picked up by the gig
Captain's Gig
The captain's gig is a boat used on naval ships as the captain's private taxi. It is a catchall phrase for this type of craft and over the years it has gradually increased in size, changed with the advent of new technologies for locomotion, and been crafted from increasingly more durable...
of the arriving Henry B. Wilson. Among the Marine survivors was the battalion's Forward Air Controller, who used an Air Force survival radio
Survival radio
Survival radios are carried by ships and aircraft to facilitate rescue in an emergency. They are generally designed to transmit on international distress frequencies...
while swimming to direct A-7
A-7 Corsair II
The Ling-Temco-Vought A-7 Corsair II is a carrier-based subsonic light attack aircraft introduced to replace the United States Navy's Douglas A-4 Skyhawk, initially entering service during the Vietnam War...
air strikes against the island until the battery failed. The second CH-53, Knife 23 was hit by an RPG which blew off the tail section and crash-landed on the East Beach, but it successfully offloaded its 20 Marines and crew of five. They set up a defensive perimeter and the Knife 23 copilot used his survival radio to call in airstrikes, but they would remain cut off from both reinforcements and rescue for twelve hours.
Knife 32 was inbound to the East Beach when it was hit by an RPG and aborted its landing, instead heading out over the West Beach to the Knife 21 crash site where it dumped fuel and proceeded to rescue the three Knife 21 crewmen. Two other sections of the first wave, consisting of the remaining four helicopters, were diverted from the East Beach to the West Beach and eventually landed all of their Marines between 06:30 and 07:00 hours, although the final insertion by Jolly Green 41 required support from an AC-130 Spectre gunship
Lockheed AC-130
The Lockheed AC-130 gunship is a heavily-armed ground-attack aircraft variant of the C-130 Hercules transport plane. The basic airframe is manufactured by Lockheed, while Boeing is responsible for the conversion into a gunship and for aircraft support...
in order to penetrate the Khmer Rouge fire on its fifth attempt. Knife 32, Jolly Green 41 and Jolly Green 42 eventually landed 81 Marines on the West Beach under the command of the company Executive Officer, and Jolly Green 43 landed 29 Marines of the battalion command post and mortar platoon a kilometer to the southwest. By 07:00 109 Marines and five Air Force crewmen were on Koh Tang, but in three isolated beach areas and in close contact with Khmer Rouge troops. The Marines at the northern end of West Beach attempted to move down the beach to link up with Col Austin's command element to the south, but was beaten back by heavy Khmer Rouge fire which killed LCPL Ashton Loney. While isolated, the Marines were able to use their 81 mm mortars
Mortar (weapon)
A mortar is an indirect fire weapon that fires explosive projectiles known as bombs at low velocities, short ranges, and high-arcing ballistic trajectories. It is typically muzzle-loading and has a barrel length less than 15 times its caliber....
as fire support for their contingents and devised a makeshift communications network for controlling supporting air strikes by USAF A-7 and F-4
F-4 Phantom II
The McDonnell Douglas F-4 Phantom II is a tandem two-seat, twin-engined, all-weather, long-range supersonic jet interceptor fighter/fighter-bomber originally developed for the United States Navy by McDonnell Aircraft. It first entered service in 1960 with the U.S. Navy. Proving highly adaptable,...
aircraft. It was decided that the platoon isolated on the East Beach should be extracted and following suppressive fire from an AC-130, Jolly Green 13 landed there at 08:15 amid a hail of machine gun fire, but it had landed some 100m away from the Marines who were reluctant to risk running to the helicopter, and Jolly Green 13 took off with its fuel lines ruptured and made an emergency landing in Rayong
Rayong
Rayong is a city located on the shore of the Gulf of Thailand, in the east coast region of Thailand. It is the capital of Rayong Province, and covers the tambon Tha Pradu and Pak Nam and parts of tambon Choeng Noen and Noen Phra, all within Mueang Rayong district...
, Thailand.
Of the eight helicopters assaulting Koh Tang, three had been destroyed (Knife 21, Knife 23 and Knife 31) and four others damaged too severely to continue operations (Knife 22, Knife 32, Jolly Green 41 and Jolly Green 42) and of the helicopters used in the Mayaguez recapture Jolly Green 13 had been severely damaged in the East Beach rescue attempt. This left only three helicopters (all HH-53s - Jolly Greens 11, 12 and 43) of the original eleven available to bring in the followup forces of BLT 2/9, so the 2 CH-53s (Knife 51 and 52) whose mission had been search and rescue — the last available helicopters — were reassigned to carry troops. The five helicopters picked up 127 Marines of the second wave at U Tapao between 09:00 and 10:00 hours. At 11:50 Knife 52, Knife 51 and Jolly Green 43 arrived over Koh Tang and prepared to land on the East Beach, as Knife 52 approached fire punctured its fuel tanks and the pilot aborted the landing and headed back to U-Tapao leaking fuel. Knife 51 and Jolly Green 43 also abandoned their landings and assumed a holding pattern.
Release of the Mayaguez crew
At 06:07 the Khmer Rouge information and propaganda minister, Hu Nim, made a radio broadcast announcing that the Mayaguez and its crew would be released, the transmission was intercepted by the CIA station in Bangkok, translated and delivered to the White House by 07:15 (20:15 EST). The White House was skeptical of the Khmer Rouge message and released a press statement at 08:15 (21:15 EST) saying that U.S. military operations would continue until the crew of the Mayaguez was released. Secretary Kissinger had of his own accord ordered a delay to an airstrike by planes from the Coral Sea on the Kompong Som oil storage complex and Ream airfield. At 06:30 on Rong Sang Lem the crew of the Mayaguez were informed that they would be allowed to return to their ship, after having first agreed to a statement that they had not been mistreated. At 07:15 the Mayaguez crew was loaded aboard the Thai fishing boat, the Sinvari (which had itself been captured by the Khmer Rouge five months earlier) escorted by a second boat with Sa Mean and other Khmer Rouge, once away from Rong Sang Lem the second boat picked up the Khmer Rouge guards from the Sinvari and instructed the crew to return to the Mayaguez and call off the American planes. At 09:35 an orbiting P-3 Orion spotted the Sinvari and the Wilson was ordered to intercept her, originally thinking it was a Khmer Rouge gunboat, the P-3 then identified that Caucasians were aboard and at 09:49 the Mayaguez crew was brought aboard the Wilson. Confirmation of the release of the crew was sent to the White House and at 11:27 (00:27 EST) President Ford went on U.S. national television announcing the recovery of the Mayaguez and the rescue of its crew, but obscuring the fact that the crew had in fact been released by the Khmer Rouge.President Ford, at Secretary Kissinger's urging, declined to cancel the scheduled airstrikes on the Cambodian mainland until the Marines on Koh Tang had been withdrawn. At 09:05 A-6A and A-7E aircraft from VA-22
VFA-22
VFA-22, Strike Fighter Squadron 22, also known as the "Fighting Redcocks", are a United States Navy F/A-18F Super Hornet fighter squadron stationed at Naval Air Station Lemoore...
, VA-94
VFA-94
Strike Fighter Squadron 94 , also known as the "Mighty Shrikes", are a United States Navy F/A-18C Hornet fighter squadron stationed at Naval Air Station Lemoore. Currently a land-based "Unit Deployment Program" squadron, they deploy with no tail code assigned...
and VA-95 escorted by F-4N fighters of VF-51
VF-51
VF-51, Fighter Squadron 51 was an aviation unit of the United States Navy known as the "Screaming Eagles". The squadron established in 1943 and retired and its personnel reassigned in 1995.- History :...
and VF-111
VF-111
Fighter Squadron 111 , also known as the Sundowners, was the designation held by two U.S. Navy fighter squadrons from 1942 to 1995. The first squadron, initially designated VF-11, served as an active Pacific Fleet Fighter Squadron until its disestablishment in 1959. At that time, another squadron...
aboard the Coral Sea had begun the delayed airstrikes, bombing landing barges and oil storage facilities at Kompong Som and cargo planes and T-28 attack aircraft at Ream airfield and boats at Ream naval base.
Extraction of Marine elements
The U.S. Joint Chiefs of Staff decided that, with the ship recaptured and the crew released, further reinforcement of Koh Tang was unnecessary and at 11:55 they ordered the U.S. forces to "immediately cease all offensive operations against the Khmer Republic [and to] disengage and withdraw all forces from operating areas as soon as possible". Hearing this order, the orbiting EC-130 Cricket recalled the second assault wave. The helicopters with the second wave reversed course until Lt. Col. Austin, on the ground on Koh Tang, convinced the commander of the Seventh Air Force that the reinforcements were necessary to prevent his units from being overrun; the order was rescinded at 12:10.The second wave carrying the Marines from Knife 22 and a platoon from Company E had originally taken off at staggered times between 09:00 and 10:00, but with the reversal of course its arrival on Koh Tang was seriously delayed. At 12:10 Knife 51, followed by Jolly Greens 43, 11 and 12 successfully landed 100 additional Marines and evacuated nine wounded on the West Beach, making a total of 225 Marines - 205 on the West Beach and 20 Marines and five Airmen on the East Beach. Around the same time Lt. Col Austin's isolated command unit planned a linkup of its small contingent with the bulk of Golf Company at the northern end of the West Beach. Using mortar fire and A-7
A-7 Corsair II
The Ling-Temco-Vought A-7 Corsair II is a carrier-based subsonic light attack aircraft introduced to replace the United States Navy's Douglas A-4 Skyhawk, initially entering service during the Vietnam War...
airstrikes to clear Khmer Rouge in the jungle between the two forces, it reached the Golf Company perimeter at 12:45.
By 14:00 firing on the West Beach had reduced substantially as Em Son had moved most of his men back from the beaches with only three man patrols maintaining pressure on the two Marine enclaves. Lt. Col Austin asked the Cricket if he should attempt to push across the island to link up with the isolated unit on the East Beach, but was advised that another helicopter pickup would be attempted first. At 14:15 Jolly Greens 11 and 43 approached East Beach, but were repulsed by heavy fire. Jolly Green 43 had a fuel line damaged, but made an emergency landing on the Coral Sea at 14:36, where it was repaired and returned to service by 17:00 hours. During the attempted landing by Jolly Green 43, fire was seen coming from a semi-submerged Swift Boat that had been shot up by an AC-130 the previous day, A-7 aircraft were called in to destroy the boat with their 20mm cannon. At 16:20 hours, Nail 68, an Air Force OV-10 Forward air control
Forward air control
Forward air control is the provision of guidance to Close Air Support aircraft intended to ensure that their attack hits the intended target and does not injure friendly troops. This task is carried out by a forward air controller . For NATO forces the qualifications and experience required to be...
(FAC) aircraft, arrived and took over the direction of air support. At 16:23 Nail 68 called on the Wilson to use its 5in gun to destroy the semi-submerged Swift Boat. This change in controllers marked a turning point in the quality of airborne firepower available to the Marines, because for the first time that day they had an airborne observer exclusively dedicated to providing accurate and timely close air support. At 17:00 Em Son gathered his forces and moved back up the island to secure an ammunition dump that lay between the West and East Beaches, he was surprised to find the dump intact and no Marines laying in ambush, now resupplied his men would be able to increase the pressure on the Marines again.
At 18:00 as the sun began setting a third attempt to rescue the East Beach force was attempted, using Jolly Green 11 as the rescue ship and with gunfire support from Jolly Green 12, Knife 51 and the gig from the Wilson mounting four M-60s. Nail 68 first ordered gun runs by an AC-130 followed by F-4s and A-7s along the edge of the East Beach, as this was going on five C-130s arrived over Koh Tang carrying "daisy cutter"
BLU-82
The BLU-82B/C-130 weapon system, known under program "Commando Vault" and nicknamed "daisy cutter" in Vietnam and in Afghanistan for its ability to flatten a forest into a helicopter landing zone, is a 15,000 pound conventional bomb, delivered from either a C-130 or an MC-130 transport aircraft....
bombs — a 15,000-pound device and the largest conventional explosive weapon in the U.S. arsenal at the time. Not seeing any practical use for the BLU-82s, Nail 68 ordered them dropped well south of the Marines' positions. At 18:15 Jolly Green 11 approached the East Beach, but did not actually set down because the hulk of Knife 23 was sitting on the beach; instead, the pilot (1LT Donald Backlund
Donald Backlund
Donald Backlund was a Major in the United States Air Force. While still a First Lieutenant, he was awarded the Air Force Cross for his actions during the Mayaguez incident in the Vietnam War.His award citation reads:...
) skilfully hovered the helicopter several feet off the ground just north of the original beach LZ. The extraction was difficult because the helicopter would see-saw up and down. Only a few Marines at a time could board the helicopter's rear ramp in this fashion by timing their jumps to coincide with the downward motion of the aircraft. Jolly Green 11 was hit numerous times, but managed to transport its cargo of 20 Marines and five Airmen to the Coral Sea. Shortly after Jolly Green 11 evacuated the East Beach, the first BLU-82 was dropped causing a huge explosion and sending a shockwave across the West Beach, Lt. Col Austin quickly called the Cricket with the instruction that no more of the bombs should be dropped. A report from Jolly Green 11 indicated that a Marine might be in the wreckage of Knife 31 and Jolly Green 12 went in to search for any survivors, Jolly Green 12 hovered above the wreck, while a crewman was lowered on a rescue hoist to survey the wreckage, no Marine was recovered and Jolly Green 12 suffered extensive damage in the rescue attempt and flew to the Coral Sea.
As a moonless night fell over Koh Tang, the remaining two helicopters, Knife 51 and the hastily repaired Jolly Green 43, were joined by Jolly Green 44 that had been out of service at its Nakhon Phanom base
Nakhon Phanom Royal Thai Air Force Base
Nakhon Phanom Royal Thai Navy Base , formerly Nakhon Phanom Royal Thai Air Force Base, is a Royal Thai Navy facility used for riverine patrols along the Mekong River. It is located approximately 365 miles northeast of Bangkok, 9 miles west of Nakhon Phanom city in Nakhon Phanom Province in the...
but had been repaired and flown to the area. At 18:40 this force began to withdraw the remaining 205 Marines from the West Beach, protected by AC-130 fire and naval gunfire support from the Henry B. Wilson and its gig. The first load of 41 Marines was lifted out at 18:40 hours by Knife 51 and flown to the Coral Sea, followed by 54 taken aboard Jolly Green 43. As Jolly Green 44 picked up a load of 44 Marines, the remaining Marines in the shrinking West Beach perimeter came under intense attack and were in danger of being overrun. The trip to the Coral Sea was a thirty minute round trip, so the pilot (1LT Bob Blough) decided to deliver his Marines to the Harold E. Holt, the nearest ship to Koh Tang, made in complete darkness while hovering over the ship with only its front wheels touching down. Within five minutes Jolly Green 44 returned and picked up 34 more Marines, leaving 32 still on the island, Jolly Green 44 was suffering engine trouble and this time headed for the Coral Sea.
Finally at 20:00 Knife 51 landed and began loading in the dark and under fire. Having loaded everyone save for themselves, Captain Davis and Gunnery Sergeant McNemar combed the beach looking for stragglers. Knife 51 Pararescueman TSGT Wayne Fisk
Wayne Fisk
CMSgt Wayne Fisk was directly involved in the famed Son Tay POW camp raid and the rescue of the crew of the SS Mayagüez. When the Mayagüez was hijacked by Cambodian Communist forces in May 1975, Fisk was a member of the assault force that successfully recovered the ship and the entrapped United...
was at the end of the ramp when two more Marines stumbled out of the darkness, TSGT Fisk asked Captain Davis if all his men were aboard and he confirmed they were, but TSGT Fisk combed the beach one last time for stragglers, finding none, he leaped onto the hovering CH-53 and at 20:10 Knife 51 left Koh Tang for the Coral Sea.
Marines left behind and subsequent controversy
Because of intense direct and indirect fire during the operation, the bodies of Marines and Airmen who were killed were left where they fell including Lcpl Ashton Loney, whose body was left behind in the darkness during the evacuation of the West Beach.With each withdrawal, the Marines contracted their perimeter on the West Beach. Lance Corporal John S. Standfast, squad leader, 3d Squad, 3d Platoon, Company E and his squad covered Company G's withdrawal during the reduction of the perimeter, and he then singlehandedly directed the pullback of his own squad. Before withdrawing to the safety of the new perimeter, Standfast and his platoon guide, Sergeant Andersen would move forward to the old perimeter to ensure that no member of the company inadvertently had been left behind, each time checking every foxhole. As the Company E commander, Captain Mykle K. Stahl, prepared to board Jolly Green 44 he informed Captain Davis that all of his men were inside the perimeter, not realising that three Marines of an M60 machine gun
M60 machine gun
The M60 is a family of American general-purpose machine guns firing 7.62×51mm NATO cartridges from a disintegrating belt of M13 links...
team had set up a firing position behind a rocky outcrop beyond the right flank of the perimeter.
Even as Knife 51 left the West Beach, there was confusion as to whether any Marines remained on Koh Tang, the pilot Lt Brims radioed the FAC that some Marines aboard claimed there were still Marines on the ground, but this was soon contradicted by Captain Davis who said that all Marines were off Koh Tang. Two hours after the evacuation was completed, with the Koh Tang Marines dispersed among three Navy ships, the Company E commander, Captain Stahl, discovered that three of his Marines were missing. The Marines checked all of the Navy ships, but could not locate LCpl
Lance Corporal
Lance corporal is a military rank, used by many armed forces worldwide, and also by some police forces and other uniformed organizations. It is below the rank of corporal, and is typically the lowest non-commissioned officer, usually equivalent to the NATO Rank Grade OR-3.- Etymology :The presumed...
Joseph N. Hargrove , PFC
Private First Class
Private First Class is a military rank held by junior enlisted persons.- Singapore :The rank of Private First Class in the Singapore Armed Forces lies between the ranks of Private and Lance-Corporal . It is usually held by conscript soldiers midway through their national service term...
Gary L. Hall, and Pvt
Private (rank)
A Private is a soldier of the lowest military rank .In modern military parlance, 'Private' is shortened to 'Pte' in the United Kingdom and other Commonwealth countries and to 'Pvt.' in the United States.Notably both Sir Fitzroy MacLean and Enoch Powell are examples of, rare, rapid career...
Danny G. Marshall, members of a three man machine gun team which had been assigned to protect the right flank of the constantly shrinking perimeter during the final evacuation. Sergeant Andersen was the last member of the Marine force to see Hall, Hargrove, and Marshall alive at about 20:00 when he ordered them to move back to a new position which was located to the left of the position occupied by Captain Davis.
A rescue operation was proposed using Marine volunteers aboard the only three serviceable helicopters. On the Coral Sea the Commander of Task Force 73, Rear Admiral R. T. Coogan met with Lt. Col Austin and Captain Davis, GSGT McNemar and Lt. Coulter who had just arrived from Subic Bay with a 14 man SEAL
United States Navy SEALs
The United States Navy's Sea, Air and Land Teams, commonly known as Navy SEALs, are the U.S. Navy's principal special operations force and a part of the Naval Special Warfare Command as well as the maritime component of the United States Special Operations Command.The acronym is derived from their...
team to consider possible options. Admiral Coogan asked Lt. Coulter to take the Wilson gig ashore in daylight unarmed under a white flag with leaflets dropped and the Wilson broadcasting the crew's intentions to recover the American bodies and determine the status of the missing men if possible, but Lt. Coulter was skeptical and instead proposed taking his team ashore for a night reconnaissance, but this was refused by the Admiral Coogan. Admiral Coogan had to weigh up the order from Seventh Fleet to cease hostile actions against the Khmer Rouge against the lack of evidence that any of the men were still alive, he decided that there would be no rescue mission unless there was some confirmation that the three Marines were still alive. The following morning the Wilson cruised back and forth between the West and East Beaches for three hours broadcasting messages in English, French and Khmer saying that they had no hostile intent, but simply wished to retrieve any U.S. personnel dead or alive on the Koh Tang and would send an unarmed boat ashore if the Khmer Rouge signalled them. Half of the Wilson crew was on deck scanning the beaches and jungle for any sign of the missing Marines, but no signal was received from the Khmer Rouge or the missing Marines. With no indication that the three Marines were still alive and the certainty that more lives would be lost in any forced rescue attempt, a return to Koh Tang was ruled out and the Wilson departed the area. Hargrove, Hall, and Marshall were declared Missing in Action and then on 21 July 1976 their status was changed to Killed in Action (Body Not Recovered).
In 1985, an eyewitness report indicated that a wounded American had been captured on Koh Tang after the assault and was subsequently executed. In 1999 Em Son approached the Joint Task Force-Full Accounting (JTF-FA) on learning that they were looking for further information regarding the events on Koh Tang. Em Son advised that on the morning on 16 May he ordered his men to search the West Beach for any remaining Americans. About 100m from the beach one of the Khmer Rouge was hit by M-16 fire, the Khmer Rouge then fired mortars and encircled the firing position capturing one American with a leg wound, Em Son's description of the American matched that of Lcpl Joseph Hargrove. The Khmer Rouge continued their search and located an abandoned M-60 machine gun, various equipment and the covered body of a black American soldier. Em Son ordered the dead American (presumably LCPL Ashton Loney) buried and the prisoner taken to his HQ, when Em Son was advised that the Khmer Rouge hit by M-16 fire had died, he ordered the American to be shot. Approximately one week after the assault, Em Son's men noticed that their leftover food was being disturbed and on searching they found bootprints in the mud, they set up a night ambush and on the third night they captured two Americans matching the descriptions of PFC Gary Hall and Pvt Danny Marshall. Em Son radioed Kampong Som and was ordered to deliver the Americans to the mainland. The following morning the two Americans were taken by boat the to mainland and then driven to the Ti Nean Pagoda above Sihanoukville where they were stripped to their underwear and shackled. After one week, on orders from Phnom Penh, each American was beaten to death with a B-40 rocket launcher, the body of Hall was buried in a shallow grave near the beach while that of Marshall was dumped on beach cove
Recovery efforts in 1999 by the JTF-FA later found bone fragments that might have belonged to the Hall and Marshall, but DNA tests proved inconclusive due to the small size of the fragments. Hargrove, Hall, and Marshall all received Purple Heart
Purple Heart
The Purple Heart is a United States military decoration awarded in the name of the President to those who have been wounded or killed while serving on or after April 5, 1917 with the U.S. military. The National Purple Heart Hall of Honor is located in New Windsor, New York...
s from the Marine Corps, however, Hargrove's family did not receive the award until 1999, after investigative journalist and author Ralph Wetterhahn published several articles in popular magazines about his findings.
In 2007, Hargrove's cousin, Cary Turner, began a campaign to have Joint POW/MIA Accounting Command (JPAC), the successor agency to JTF-FA, return to Koh Tang to search for Hargrove's remains. In October 2008 JPAC, was reported to have found four sets of remains in an area indicated by Em Son as being where the American suspected to be Hargrove was buried. One of the sets of remains was said to be Caucasian in nature, but DNA analysis was needed before the identity could be confirmed.
Aftermath
The reaction of the American public was favorable. The President's overall approval rating rose 11%.A number of US personnel were awarded medals following the events, including:
- TSgt Wayne FiskWayne FiskCMSgt Wayne Fisk was directly involved in the famed Son Tay POW camp raid and the rescue of the crew of the SS Mayagüez. When the Mayagüez was hijacked by Cambodian Communist forces in May 1975, Fisk was a member of the assault force that successfully recovered the ship and the entrapped United...
, a pararescueman on Knife 51 was awarded a Bronze Oak leaf clusterOak leaf clusterAn oak leaf cluster is a common device which is placed on U.S. Army and Air Force awards and decorations to denote those who have received more than one bestowal of a particular decoration. The number of oak leaf clusters typically indicates the number of subsequent awards of the decoration...
in lieu of a second award of the Silver StarSilver StarThe Silver Star is the third-highest combat military decoration that can be awarded to a member of any branch of the United States armed forces for valor in the face of the enemy....
.
- 1st Lt Bob Blough, pilot of Jolly Green 44 was awarded the Silver Star.
Four Airmen were awarded the Air Force Cross
Air Force Cross (United States)
The Air Force Cross is the second highest military decoration that can be awarded to a member of the United States Air Force. The Air Force Cross is the Air Force decoration equivalent to the Distinguished Service Cross and the Navy Cross .The Air Force Cross is awarded for extraordinary heroism...
:
- Capt Rowland Purser, pilot of Jolly Green 43
- 1st Lt Donald BacklundDonald BacklundDonald Backlund was a Major in the United States Air Force. While still a First Lieutenant, he was awarded the Air Force Cross for his actions during the Mayaguez incident in the Vietnam War.His award citation reads:...
, pilot of Jolly Green 11 - 1st Lt Richard C Brims, pilot of Knife 51
- SSgt Jon Harston, flight mechanic of Knife 31
Khmer casualties
U.S. estimates of Khmer Rouge casualties were 13-25 killed on Koh Tang with an unknown number killed on Swift Boats and on the Cambodian mainland.US casualties
Casualties during the operation were 10 Marines, two Navy corpsmen, and two Air Force crewmen killed in the crash of Knife 31, one Marine killed in action on the West Beach and three Marines missing in action, later killed. Thirty-five Marines and six airmen were wounded.Between 1991 and 1999, U.S. and Cambodian investigators conducted seven joint investigations, led by the Joint Task Force-Full Accounting. On three occasions Cambodian authorities unilaterally turned over remains believed to be those of American servicemen. In October and November 1995, U.S. and Cambodian specialists conducted an underwater recovery of the Knife 31 crash site where they located numerous remains, personal effects and aircraft debris associated with the loss. The , a Navy salvage vessel, enabled the specialists to conduct their excavation offshore. In addition to the support provided by the Cambodian government, the Government of Vietnam also interviewed two Vietnamese informants in Ho Chi Minh City who turned over remains that were later positively identified. As a result of these investigations the remains of 2LT Richard Vandegeer, LCPL Gregory S Copenhaver, LCPL Andres Garcia, PFC Lynn Blessing, PFC Walter Boyd, PFC Antonio R Sandoval and PFC Kelton R. Turner were identified.
Impact on Thailand
The Mayaguez incident had a direct effect on the political situation in Thailand, as news of the operation reached Bangkok protests began outside the U.S. Embassy. The U-Tapao air base had been used by U.S. rescue forces despite an explicit refusal of permission by the relatively new civilian Thai government (after being refused by the Thai government, the US sought and obtained permission from the Thai military to proceed), resulting in considerable anger towards the United States. The Thai government called the act a violation of Thailand's sovereignty and called for the immediate withdrawal of all U.S. forces from U-Tapao.Impact on U.S. military rescue planning
The U.S. military received much criticism for its handling of the incident. In addition to the failure of intelligence to determine the whereabouts of the crew of the Mayaguez and the presence of a sizable hostile force on Koh Tang, the timing of the operation was questioned until it became clear that combat had been underway four hours before the crew was released. Within the services, the Marines in particular were critical of the ad hoc nature of the joint operation and the perceived pressure from the Administration for hasty action, although the success of Operation Frequent WindOperation Frequent Wind
Operation Frequent Wind was the evacuation by helicopter of American civilians and 'at-risk' Vietnamese from Saigon, South Vietnam, on 29–30 April 1975 during the last days of the Vietnam War...
had been the basis for many decisions made during the crisis. Vice Admiral George P. Steele, the Seventh Fleet commander later stated that: "The sad part of the Mayaguez is that we had sufficient force coming up with the Seventh Fleet, after it had been turned around from the evacuation of Vietnam stand down, to seize Southern Cambodia. I begged for another day or two, rather than commit forces piecemeal as we did .... The idea that we could use U.S. Air Force air police and Air Force helicopters as an assault force appears to me as ridiculous today as it did then."
When many of the coordination and communications problems arose again during Operation Eagle Claw
Operation Eagle Claw
Operation Eagle Claw was an American military operation ordered by President Jimmy Carter to attempt to put an end to the Iran hostage crisis by rescuing 52 Americans held captive at the U.S. Embassy in Tehran, Iran on 24 April 1980...
, the hostage rescue mission in Iran
Iran
Iran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...
in 1980, significant changes in joint and special operations were brought about.
External links
- Koh Tang Beach Vets/Mayaguez Recovery Website
- Capture and Release of SS Mayaguez by Khmer Rouge forces in May 1975
- 56th Security Police Squadron, Nakhom Phanom RTAFB, USS Mayaguez rescue operation
- CBS news reports of the Mayaguez incident and the search for the three missing Marines
- Left Behind but not Forgotten
- USAF Southeast Asia Monograph Series Volume III Fourteen Hours at Koh Tang