20th Marine Regiment was an engineer regiment of the United States Marine Corps

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...

 that fought during World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

.

Subordinate units

• Headquarters & Services Company
• 1st Battalion 20th Marines
• 2nd Battalion 20th Marines
• 3rd Battalion 20th Marines

History

20th Marines was formed on June 15, 1943 at Marine Corps Base Camp Lejeune

Marine Corps Base Camp Lejeune

Marine Corps Base Camp Lejeune is a United States military training facility in North Carolina. The base's of beaches make it a major area for amphibious assault training, and its location between two deep-water ports allows for fast deployments.The main base is supplemented by five satellite...

, North Carolina

North Carolina

North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...

 from cadred units of the 19th Marine Regiment

19th Marine Regiment (United States)

The 19th Marine Regiment was an engineer regiment of the United States Marine Corps subordinate to the 3rd Marine Division. It existed from September 1942 until September 1944.-Subordinate units:...

. It originally consisted of three battalions and was assigned to support the 4th Marine Division. The 1st and 2nd Battalions were made up of Marines while the 3rd Battalion was formed with US Navy Construction Battalion personnel also known as Seabee

Seabee

Seabees are members of the United States Navy construction battalions. The word Seabee is a proper noun that comes from the initials of Construction Battalion, of the United States Navy...

s. During the war the Regiment fought during the Battle of Kwajalein

Battle of Kwajalein

The Battle of Kwajalein was a battle of the Pacific campaign of World War II, fought from 31 January-3 February 1944, on Kwajalein Atoll in the Marshall Islands. Employing the hard-learned lessons of the battle of Tarawa, the United States launched a successful twin assault on the main islands of...

, Battle of Saipan

Battle of Saipan

The Battle of Saipan was a battle of the Pacific campaign of World War II, fought on the island of Saipan in the Mariana Islands from 15 June-9 July 1944. The Allied invasion fleet embarking the expeditionary forces left Pearl Harbor on 5 June 1944, the day before Operation Overlord in Europe was...

 and Battle of Tinian

Battle of Tinian

The Battle of Tinian was a battle of the Pacific campaign of World War II, fought on the island of Tinian in the Mariana Islands from 24 July 1944 to 1 August 1944.-Background:...

. The regiment was deactivated on August 31, 1944 and its component battalions were reassigned within the 4th Marine Division.

See also

• List of United States Marine Corps regiments
• Organization of the United States Marine Corps
  Organization of the United States Marine Corps
  The United States Marine Corps is organized within the Department of the Navy, which is led by the Secretary of the Navy . The most senior Marine officer is the Commandant of the Marine Corps, responsible for organizing, recruiting, training, and equipping the Marine Corps so that it is ready for...