Battle of Chickasaw Bayou
Encyclopedia
The Battle of Chickasaw Bayou, also called Walnut Hills, fought December 26–29, 1862, was the opening engagement of the Vicksburg Campaign
Vicksburg Campaign
The Vicksburg Campaign was a series of maneuvers and battles in the Western Theater of the American Civil War directed against Vicksburg, Mississippi, a fortress city that dominated the last Confederate-controlled section of the Mississippi River. The Union Army of the Tennessee under Maj. Gen....

 during 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...

. Confederate
Confederate States Army
The Confederate States Army was the army of the Confederate States of America while the Confederacy existed during the American Civil War. On February 8, 1861, delegates from the seven Deep South states which had already declared their secession from the United States of America adopted the...

 forces under Lt. Gen. John C. Pemberton
John C. Pemberton
John Clifford Pemberton , was a career United States Army officer who fought in the Seminole Wars and with distinction during the Mexican–American War. He also served as a Confederate general during the American Civil War, noted for his defeat and surrender in the critical Siege of Vicksburg in...

 repulsed an advance by Union
Union Army
The Union Army was the land force that fought for the Union during the American Civil War. It was also known as the Federal Army, the U.S. Army, the Northern Army and the National Army...

 Maj. Gen.
Major general (United States)
In the United States Army, United States Marine Corps, and United States Air Force, major general is a two-star general-officer rank, with the pay grade of O-8. Major general ranks above brigadier general and below lieutenant general...

 William T. Sherman that intended to lead to the capture of Vicksburg, Mississippi
Vicksburg, Mississippi
Vicksburg is a city in Warren County, Mississippi, United States. It is the only city in Warren County. It is located northwest of New Orleans on the Mississippi and Yazoo rivers, and due west of Jackson, the state capital. In 1900, 14,834 people lived in Vicksburg; in 1910, 20,814; in 1920,...

.

On December 26, three Union divisions under Sherman disembarked at Johnson's Plantation on the Yazoo River
Yazoo River
The Yazoo River is a river in the U.S. state of Mississippi.The Yazoo River was named by French explorer La Salle in 1682 as "Rivière des Yazous" in reference to the Yazoo tribe living near the river's mouth. The exact meaning of the term is unclear...

 to approach the Vicksburg defenses from the northeast while a fourth landed farther upstream on December 27. On December 27, the Federals pushed their lines forward through the swamps toward the Walnut Hills, which were strongly defended. On December 28, several futile attempts were made to get around these defenses. On December 29, Sherman ordered a frontal assault, which was repulsed with heavy casualties, and then withdrew. This Confederate victory frustrated Maj. Gen. Ulysses S. Grant
Ulysses S. Grant
Ulysses S. Grant was the 18th President of the United States as well as military commander during the Civil War and post-war Reconstruction periods. Under Grant's command, the Union Army defeated the Confederate military and ended the Confederate States of America...

's attempts to take Vicksburg by direct approach.

Background and opposing forces

Starting in November 1862, Maj. Gen. Ulysses S. Grant
Ulysses S. Grant
Ulysses S. Grant was the 18th President of the United States as well as military commander during the Civil War and post-war Reconstruction periods. Under Grant's command, the Union Army defeated the Confederate military and ended the Confederate States of America...

, commanding Union
Union Army
The Union Army was the land force that fought for the Union during the American Civil War. It was also known as the Federal Army, the U.S. Army, the Northern Army and the National Army...

 forces in Mississippi
Mississippi
Mississippi is a U.S. state located in the Southern United States. Jackson is the state capital and largest city. The name of the state derives from the Mississippi River, which flows along its western boundary, whose name comes from the Ojibwe word misi-ziibi...

, undertook a campaign to capture the city of Vicksburg, high on the bluffs of the Mississippi River
Mississippi River
The Mississippi River is the largest river system in North America. Flowing entirely in the United States, this river rises in western Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains...

, one of two Confederate strong points (the other being Port Hudson, Louisiana
Port Hudson, Louisiana
Port Hudson is a small unincorporated community in East Baton Rouge Parish, Louisiana, United States. Located about northwest of Baton Rouge, it is most famous for an American Civil War battle known as the Siege of Port Hudson.-Geography:...

) that denied the Union complete control of the Mississippi River. Grant split his 70,000-man army into two wings—one commanded by himself and one commanded by Maj. Gen. William T. Sherman. Sherman commanded the Right Wing, or XIII Corps, Army of the Tennessee
Army of the Tennessee
The Army of the Tennessee was a Union army in the Western Theater of the American Civil War, named for the Tennessee River. It should not be confused with the similarly named Army of Tennessee, a Confederate army named after the State of Tennessee....

, redesignated the XV Corps on December 22. His expeditionary force of 32,000 troops was organized into four divisions, commanded by Brig. Gens. Andrew J. Smith
Andrew Jackson Smith
Andrew Jackson Smith was a United States Army general during the American Civil War, rising to the command of a corps. He was most noted for his victory over Confederate General S.D...

, Morgan L. Smith
Morgan Lewis Smith
Morgan Lewis Smith was a Union general in the American Civil War.-Biography:Smith was born in Oswego County, New York. In 1843 he settled in Indiana, and later had some military experience in the United States Army. At the outbreak of the Civil War he raised the 8th Missouri Volunteer Infantry, of...

, George W. Morgan
George W. Morgan
George Washington Morgan was an American soldier, lawyer, politician, and diplomat. He fought in the Texas Revolution and the Mexican-American War, and was a general in the Union Army during the American Civil War...

, and Frederick Steele
Frederick Steele
Frederick Steele was a career military officer in the United States Army, serving as a major general in the Union Army during the American Civil War. He was most noted for his successful campaign to retake much of secessionist Arkansas for the Union cause.-Early life:Steele was born in Delhi, New...

.

Grant's wing marched south down the Mississippi Central Railroad, making a forward base at Holly Springs
Holly Springs, Mississippi
Holly Springs is a city in Marshall County, Mississippi, United States. The population was 7,957 at the 2000 census. It is the county seat of Marshall County. A short drive from Memphis, Tennessee, Holly Springs is the site of a number of well-preserved antebellum homes and other structures and...

. He planned a two-pronged assault in the direction of Vicksburg. As Sherman advanced down the river, Grant would continue with the remaining forces (about 40,000) down the railroad line to Oxford
Oxford, Mississippi
Oxford is a city in, and the county seat of, Lafayette County, Mississippi, United States. Founded in 1835, it was named after the British university city of Oxford in hopes of having the state university located there, which it did successfully attract....

, where he would wait for developments, hoping to lure the Confederate army out of the city to attack him in the vicinity of Grenada, Mississippi
Grenada, Mississippi
Grenada is a city in Grenada County, Mississippi, United States. The population was 14,879 at the 2000 census. It is the county seat of Grenada County.-History:...

.

The seven gunboats and fifty-nine troop transports commanded by Rear Adm. David D. Porter departed Memphis, Tennessee
Memphis, Tennessee
Memphis is a city in the southwestern corner of the U.S. state of Tennessee, and the county seat of Shelby County. The city is located on the 4th Chickasaw Bluff, south of the confluence of the Wolf and Mississippi rivers....

, on December 20, stopped at Helena, Arkansas
Helena, Arkansas
Helena is the eastern portion of Helena-West Helena, Arkansas, a city in Phillips County, Arkansas. As of the 2000 census, this portion of the city population was 6,323. Helena was the county seat of Phillips County until January 1, 2006, when it merged its government and city limits with...

, to pick up additional troops, and arrived at Milliken's Bend above Vicksburg on December 24. After advancing up the Yazoo River
Yazoo River
The Yazoo River is a river in the U.S. state of Mississippi.The Yazoo River was named by French explorer La Salle in 1682 as "Rivière des Yazous" in reference to the Yazoo tribe living near the river's mouth. The exact meaning of the term is unclear...

, the transports disembarked Sherman's men at Johnson's Plantation, opposite Steele's Bayou, north of the city. (Preceding the landing, the U.S. Navy conducted torpedo
Naval mine
A naval mine is a self-contained explosive device placed in water to destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, an enemy vessel...

 clearing operations on the Yazoo, during which the ironclad
Ironclad warship
An ironclad was a steam-propelled warship in the early part of the second half of the 19th century, protected by iron or steel armor plates. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The first ironclad battleship, La Gloire,...

 USS Cairo
USS Cairo (1861)
USS Cairo was a City class ironclad gunboat constructed for the Union Navy by James B. Eads during the American Civil War. She was the first vessel of the City class ironclads, also called the Cairo class....

 was sunk.)

The Confederate forces opposing Sherman's advance were from the Department of Mississippi and East Louisiana, commanded by Lt. Gen. John C. Pemberton
John C. Pemberton
John Clifford Pemberton , was a career United States Army officer who fought in the Seminole Wars and with distinction during the Mexican–American War. He also served as a Confederate general during the American Civil War, noted for his defeat and surrender in the critical Siege of Vicksburg in...

, a Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

n who chose to fight for the South
Southern United States
The Southern United States—commonly referred to as the American South, Dixie, or simply the South—constitutes a large distinctive area in the southeastern and south-central United States...

. The officer in direct command of the defenses of Vicksburg was Maj. Gen. Martin L. Smith, who commanded four brigades led by Brig. Gens. Seth M. Barton, John C. Vaughn
John C. Vaughn
John C. Vaughn was a Confederate cavalry officer from East Tennessee.He served in the Mexican-American War, prospected in the California Gold Rush, and participated in American Civil War battles...

, John Gregg
John Gregg (CSA)
John Gregg was an American judge, politician, and general in the Confederate States Army during the American Civil War. He was killed in action during the Siege of Petersburg.-Early life and career:...

, and Edward D. Tracy
Edward D. Tracy
Edward Dorr Tracy was a general of the Confederate States Army during the American Civil War. After serving in Eastern Tennessee, he was killed in the Siege of Vicksburg at the Battle of Port Gibson. Prior to the war, he was a lawyer....

. Brig. Gen. Stephen D. Lee
Stephen D. Lee
Stephen Dill Lee was an American soldier, planter, legislator, and author. He was the youngest Confederate lieutenant general during the American Civil War, and later served as the first president of Mississippi A&M College...

 commanded a provisional division with brigades commanded by Cols.
Colonel (United States)
In the United States Army, Air Force, and Marine Corps, colonel is a senior field grade military officer rank just above the rank of lieutenant colonel and just below the rank of brigadier general...

 William T. Withers and Allen Thomas; Lee was the primary commander of the Confederate defense in the Walnut Hills until the arrival late on December 29 of Maj. Gen. Carter L. Stevenson
Carter L. Stevenson
Carter Littlepage Stevenson, Jr. was a career military officer, serving in the United States Army in several antebellum wars and then in the Confederate States Army as a general in the Western Theater of the American Civil War.-Early life and career:Stevenson was born to a prominent family in...

. Although the Union forces outnumbered the men to their front by two to one (30,720 to 13,792), they faced a formidable maze of both natural and man-made defenses. First was a thick entanglement of trees, which was broken intermittently by swamp
Swamp
A swamp is a wetland with some flooding of large areas of land by shallow bodies of water. A swamp generally has a large number of hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates periodical inundation. The two main types of swamp are "true" or swamp...

land. Chickasaw Bayou, a stream that was chest-deep, 50 yards wide, and choked with trees, also acted as a potential barrier to Sherman's men because it was parallel to the planned line of advance and could interrupt communication between units. Furthermore, the Confederates had formed dense barriers using felled trees for abatis
Abatis
Abatis, abattis, or abbattis is a term in field fortification for an obstacle formed of the branches of trees laid in a row, with the sharpened tops directed outwards, towards the enemy. The trees are usually interlaced or tied with wire...

.

Battle

On December 26, Sherman deployed the brigades of Col. John F. DeCourcy and Brig. Gens. David Stuart
David Stuart (politician)
David Stuart was a politician from the U.S. state of Michigan and an officer in the Union Army during the American Civil War.-Early life:...

 and Francis P. Blair, Jr., to perform reconnaissance and find weaknesses in a Confederate defense. They moved slowly ahead through the difficult terrain, skirmishing with S.D. Lee's covering force that had been at Mrs. Lake's plantation. On December 28, Steele's division attempted to turn the Confederate right flank, but was repulsed by Confederate artillery fire as they advanced on a narrow front.

On the morning of December 29, Sherman ordered an artillery bombardment of the Confederate defenses to weaken them before a general Federal advance. For almost four hours, an artillery duel took place all along the line of battle, but did little damage. At 11 a.m., the duel ceased, and the infantry deployed into their lines of battle. Understanding the formidable nature of the Confederate fortifications, Sherman remarked, "We will lose 5,000 men before we take Vicksburg, and may as well lose them here as anywhere else."

At noon, Union troops advanced with a cheer. Blair's brigade moved on the left, DeCourcy's in the center, followed by Brig. Gen. John M. Thayer's brigade on the right; Thayer's brigade lost its way and only one regiment, the 4th Iowa Infantry, was engaged. Colonel James A. Williamson
James Alexander Williamson
James A. Williamson was a politician, and lawyer who served in the Union army during the American Civil War, rising to the rank of brigadier general. He received the Medal of Honor for his actions at the Battle of Chickasaw Bayou.-Biography:Williamson was born in Columbia, Kentucky in 1829...

, commanding the 4th Iowa, was later awarded the Medal of Honor for his actions that day. They crossed water barriers and abatis and carried the advance rifle pits on the weight of sheer numbers, but met stiff resistance when they came against the main Confederate line and began to crumble under the heavy fire. The survivors fell back across the bayou on a corduroy bridge. S.D. Lee ordered his men to make a counterattack, during which they captured 332 Federals and four battle flags.

Another assault ordered by Sherman was conducted by two divisions under A.J. Smith (his own division and that of M.L. Smith, who had been wounded the day before) advancing across Chickasaw Bayou to seize the Indian Mound that was in the center of the Confederate line, defended by Barton and Gregg. Skirmishers from the brigades of Cols. Giles A. Smith and Thomas Kilby Smith
Thomas Kilby Smith
Thomas Kilby Smith was a lawyer, soldier, and diplomat from the state of Ohio who served as a general in the Union Army during the American Civil War and then in the postbellum United States Army...

 covered the bayou crossing and the 6th Missouri Infantry
6th Missouri Volunteer Infantry
The 6th Missouri Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.-Service:The 6th Missouri Infantry was organized at St. Louis, Missouri June 15 - July 9, 1861 and mustered in for three years service....

 of G. A. Smith's brigade led the way with 20 pioneers
Combat engineering
A combat engineer, also called pioneer or sapper in many armies, is a soldier who performs a variety of construction and demolition tasks under combat conditions...

, building a road on the far bank. Five attempts to carry the position at the Indian mound were repulsed.

On the far Union right, an attack by Col. William J. Landram
William J. Landram
William Jennings Landram was a lawyer, publisher, and Union officer during the American Civil War. He served in many of the campaigns associated with the XIII Corps often in command of a brigade and occasionally in division command...

's brigade of A.J. Smith's division was easily repulsed by the Confederates of Vaughn's brigade.

Aftermath

That evening, Sherman declared that he was "generally satisfied with the high spirit manifested" by his men although their attacks had failed in the face of strong Confederate positions on the high bluffs. Union casualties were 208 killed, 1,005 wounded, and 563 captured or missing; Confederate casualties were 63 killed, 134 wounded, 10 missing. Sherman conferred with Adm. Porter, whose naval gunfire had also failed to do any significant damage to the enemy. They decided to resume the attacks on the following day and Porter sent a boat to Memphis to get more small arms ammunition.

By the morning of December 30, Sherman had concluded that resuming the attacks at the same location would be fruitless and he and Porter planned a joint army-navy attack on Drumgould's Bluff to the northeast, hoping that the steep bluffs would provide cover for his men as they advanced. It was imperative that such a movement be started in secrecy so that the Confederates would not shift their defensive forces. The movement commenced on December 31, but was called off in heavy fog on January 1, 1863.

During this period, the overland half of Grant's offensive was also failing. His lines of communication were disrupted by raids by Brig. Gen. Nathan Bedford Forrest
Nathan Bedford Forrest
Nathan Bedford Forrest was a lieutenant general in the Confederate Army during the American Civil War. He is remembered both as a self-educated, innovative cavalry leader during the war and as a leading southern advocate in the postwar years...

 and by Maj. Gen. Earl Van Dorn
Earl Van Dorn
Earl Van Dorn was a career United States Army officer, fighting with distinction during the Mexican-American War and against several tribes of Native Americans...

, who destroyed the large supply depot at Holly Springs. Unable to subsist his army without these supplies, Grant abandoned his overland advance. Sherman realized that his corps would not be reinforced by Grant and decided to withdraw his expedition, moving to the mouth of the Yazoo on January 2. On January 5, Sherman sent a letter to General-in-Chief Henry W. Halleck, summing up the campaign (in a manner reminiscent of a famous statement by Julius Caesar
Julius Caesar
Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

), "I reached Vicksburg at the time appointed, landed, assaulted, and failed." He and his command were then temporarily assigned to Maj. Gen. John A. McClernand for an expedition up the Arkansas River
Arkansas River
The Arkansas River is a major tributary of the Mississippi River. The Arkansas generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's initial basin starts in the Western United States in Colorado, specifically the Arkansas...

 and the Battle of Arkansas Post. Although Grant tried a number of operations, or "experiments", to reach Vicksburg over the winter, the Vicksburg Campaign did not begin again in earnest until April 1863.
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