| Army of the Cumberland | |
|---|---|
 Battle of Missionary Ridge | |
| Active | October 24, 1862 – August 1, 1865 |
| Country |  United States |
| Branch |  United States Army |
| Type | Field army |
| Engagements | American Civil War |
| Commanders | |
| Notable commanders | William S. Rosecrans George H. Thomas Robert Anderson |
The Army of the Cumberland was one of the principal Union armies in the Western Theater during the American Civil War. It was originally known as the Army of the Ohio.
The origin of the Army of the Cumberland dates back to the creation of the Army of the Ohio in November 1861, under the command of Brig. Gen. Robert Anderson. The army fought under the name Army of the Ohio until Maj. Gen. William S. Rosecrans assumed command of the army and the Department of the Cumberland and changed the name of the combined entity to the Army of the Cumberland. When Rosecrans assumed command, the army and the XIV Corps were the same unit, divided into three "grand divisions" (wings) commanded by Alexander McCook (Right Wing), George H. Thomas (Center), and Thomas L. Crittenden (Left).
General Order No. 168 was the order passed by the Union Army on October 24, 1862, that called for commissioning the XIV Corps into the Army of the Cumberland.
The army's first significant combat under the Cumberland name was at the Battle of Stones River. After the battle the army and XIV Corps were separated. The former Center wing became XIV Corps, the Right wing became XX Corps, and the Left wing became XXI Corps. Rosecrans still retained command of the army. He next led it through the Tullahoma Campaign and at the Battle of Chickamauga, after which the army became besieged at Chattanooga. Maj. Gen. Ulysses S. Grant arrived at Chattanooga. Reinforcements from the Army of the Potomac and the Army of the Tennessee also arrived. Rosecrans had been a popular and respected commander, but because of his defeat at Chickamauga and inability to lift the Confederate siege, Grant chose to replace him with George H. Thomas on October 19, 1863.
In the Battles for Chattanooga, Grant had been leery of using the Army of the Cumberland in the main fighting, fearing their morale to be too low after the defeat at Chickamauga. Instead, he used the veterans from the Army of the Potomac, proud of their recent victory at the Battle of Gettysburg, to take Lookout Mountain and planned to use the troops from the Army of the Tennessee, also recent victors at the Siege of Vicksburg, to attack the Confederate right flank on Missionary Ridge. The Army of the Cumberland was given the minor task of seizing the rifle pits at the base of Missionary Ridge. However, once they achieved their objective, four divisions (one led by Philip H. Sheridan) stormed up the ridge and routed the Confederate center. When Grant angrily asked who had ordered those troops up the ridge both Thomas and Gordon Granger, a corps commander in the army, responded they did not know. Granger then added, "Once those boys get started, all hell can't stop 'em."
After Grant's victory at Chattanooga earned him promotion to general-in-chief of the U.S. Army, Maj. Gen. William T. Sherman assumed command of Grant's Military Division of the Mississippi, which controlled all Union armies in the West. He created an "army group" of the Army of the Cumberland, the Army of the Tennessee, and the Army of the Ohio and marched towards Atlanta in May 1864. On the way to Atlanta they fought in many battles and skirmishes including the Battle of Kennesaw Mountain. In September, Atlanta fell to Sherman's army group. When Confederate general John B. Hood moved north from Atlanta, Sherman chose not to follow him and instead dispatched some of the Army of the Cumberland (IV Corps and Provisional Detachment) and the Army of the Ohio (XXIII Corps) after him. Thomas finally met Hood at the Battle of Nashville and crushed him, thus bringing to an end any significant military actions for the Army of the Cumberland. Other elements of the Army of the Cumberland (the XIV and XX Corps) marched to the sea and north through the Carolinas with Sherman, under the command of Maj. Gen. Henry W. Slocum. These forces became the Union's Army of Georgia and participated in the Grand Review of the Armies in Washington, D.C., before President Andrew Johnson in 1865.
| Commander | From | To | Major Battles and Campaigns |
|---|---|---|---|
| Major General William S. Rosecrans | October 24, 1862 | October 19, 1863 | Stones River, Tullahoma Campaign, Chickamauga |
| Major General George H. Thomas | October 19, 1863 | August 1, 1865 | Chattanooga, Atlanta Campaign, Franklin, Nashville |
George Henry Thomas was a United States Army officer and a Union general during the American Civil War, one of the principal commanders in the Western Theater.
The Battle of Chickamauga, fought on September 18–20, 1863, between U.S. and Confederate forces in the American Civil War, marked the end of a Union offensive, the Chickamauga Campaign, in southeastern Tennessee and northwestern Georgia. It was the first major battle of the war fought in Georgia, the most significant Union defeat in the Western Theater, and involved the second-highest number of casualties after the Battle of Gettysburg.
The Battle of Lookout Mountain was fought November 24, 1863, as part of the Chattanooga Campaign of the American Civil War. Union forces under Maj. Gen. Joseph Hooker assaulted Lookout Mountain, Chattanooga, Tennessee, and defeated Confederate forces commanded by Maj. Gen. Carter L. Stevenson. Lookout Mountain was one engagement in the Chattanooga battles between Maj. Gen. Ulysses S. Grant's Military Division of the Mississippi and the Confederate Army of Tennessee, commanded by Gen. Braxton Bragg. It drove in the Confederate left flank and allowed Hooker's men to assist in the Battle of Missionary Ridge the following day, which routed Bragg's army, lifting the siege of Union forces in Chattanooga, and opening the gateway into the Deep South.
William Starke Rosecrans was an American inventor, coal-oil company executive, diplomat, politician, and U.S. Army officer. He gained fame for his role as a Union general during the American Civil War. He was the victor at prominent Western Theater battles, but his military career was effectively ended following his disastrous defeat at the Battle of Chickamauga in 1863.
The Army of Tennessee was the principal Confederate army operating between the Appalachian Mountains and the Mississippi River during the American Civil War. It was formed in late 1862 and fought until the end of the war in 1865, participating in most of the significant battles in the Western Theater.
The Army of the Tennessee was a Union army in the Western Theater of the American Civil War, named for the Tennessee River.
Leonidas Polk was a bishop of the Episcopal Diocese of Louisiana and founder of the Protestant Episcopal Church in the Confederate States of America, which separated from the Episcopal Church of the United States of America. He was a slaveholding planter in Maury County, Tennessee, and a second cousin of President James K. Polk. He resigned his ecclesiastical position to become a major general in the Confederate army, when he was called "Sewanee's Fighting Bishop". His official portrait at the University of the South depicts him dressed as a bishop with his army uniform hanging nearby.
William Babcock Hazen was a career United States Army officer who served in the Indian Wars, as a Union general in the American Civil War, and as Chief Signal Officer of the U.S. Army. His most famous service was defending "Hell's Half Acre" at the Battle of Stones River in 1862, and seizing Fort McAllister, Georgia, in December 1864, which allowed William Sherman to capture Savannah at the end of his March to the Sea.
The Battle of Missionary Ridge was fought on November 25, 1863, as part of the Chattanooga Campaign of the American Civil War. Following the Union victory in the Battle of Lookout Mountain on November 24, Union forces in the Military Division of the Mississippi under Maj. Gen. Ulysses S. Grant assaulted Missionary Ridge and defeated the Confederate Army of Tennessee, commanded by Gen. Braxton Bragg, forcing it to retreat to Georgia.
The Army of the Ohio was the name of two Union armies in the American Civil War. The first army became the Army of the Cumberland and the second army was created in 1863.
The Tullahoma campaign was a military operation conducted from June 24 to July 3, 1863, by the Union Army of the Cumberland under Maj. Gen. William Rosecrans, and regarded as one of the most brilliant maneuvers of the American Civil War. Its effect was to drive the Confederates out of Middle Tennessee and to threaten the strategic city of Chattanooga.
XIV Corps was a corps of the Union Army during the American Civil War. It was one of the earliest corps formations in the Western Theater of the American Civil War.
The Chickamauga campaign of the American Civil War was a series of battles fought in northwestern Georgia from August 21 to September 20, 1863, between the Union Army of the Cumberland and Confederate Army of Tennessee. The campaign started successfully for Union commander William S. Rosecrans, with the Union army occupying the vital city of Chattanooga and forcing the Confederates to retreat into northern Georgia. But a Confederate attack at the Battle of Chickamauga forced Rosecrans to retreat back into Chattanooga and allowed the Confederates to lay siege to the Union forces.
The Battle of Davis's Cross Roads, was fought September 10–11, 1863, in northwestern Georgia, as part of the Chickamauga Campaign of the American Civil War. It was more of a series of maneuvers and skirmishes than an actual battle and casualties were negligible.
The Western Theater of the American Civil War encompassed major military operations in the states of Alabama, Georgia, Florida, Mississippi, North Carolina, Kentucky, South Carolina and Tennessee, as well as Louisiana east of the Mississippi River. Operations on the coasts of these states, except for Mobile Bay, are considered part of the Lower Seaboard Theater. Most other operations east of the Appalachian Mountains are part of the Eastern Theater. Operations west of the Mississippi River took place in the Trans-Mississippi Theater.
The Knoxville campaign was a series of American Civil War battles and maneuvers in East Tennessee during the fall of 1863 designed to secure control of the city of Knoxville and with it the railroad that linked the Confederacy east and west, and position the First Corps under Longstreet for return to the Army of Northern Virginia. Union Army forces under Maj. Gen. Ambrose Burnside occupied Knoxville, Tennessee, and Confederate States Army forces under Lt. Gen. James Longstreet were detached from Gen. Braxton Bragg's Army of Tennessee at Chattanooga to prevent Burnside's reinforcement of the besieged Federal forces there. Ultimately, Longstreet's own siege of Knoxville ended when Union Maj. Gen. William Tecumseh Sherman led elements of the Army of the Tennessee and other troops to Burnside's relief after Union troops had broken the Confederate siege of Chattanooga. Although Longstreet was one of Gen. Robert E. Lee's best corps commanders in the East in the Army of Northern Virginia, he was unsuccessful in his attempt to penetrate the Knoxville defenses and take the city.
John Grant Mitchell was an Ohio lawyer and a general in the Union Army during the American Civil War. He was active in several important campaigns and battles in the Western Theater, including the Chickamauga, Atlanta, and Franklin-Nashville and Carolinas campaigns. He commanded a brigade of veteran infantry in many of these operations.
The Chattanooga campaign was a series of maneuvers and battles in October and November 1863, during the American Civil War. Following the defeat of Maj. Gen. William S. Rosecrans's Union Army of the Cumberland at the Battle of Chickamauga in September, the Confederate Army of Tennessee under Gen. Braxton Bragg besieged Rosecrans and his men by occupying key high terrain around Chattanooga, Tennessee. Maj. Gen. Ulysses S. Grant was given command of Union forces in the West, now consolidated under the Division of the Mississippi. Significant reinforcements also began to arrive with him in Chattanooga from Mississippi and the Eastern Theater. On October 18, Grant removed Rosecrans from command of the Army of the Cumberland and replaced him with Major General George Henry Thomas.
The 125th Ohio Infantry Regiment, sometimes 125th Ohio Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War.
Chattanooga, Tennessee, was a major rail centre and a strategic vantage-point, with high ground competed-for by both sides. When Union forces were besieged in the town, General Ulysses S. Grant forced a supply-route, earning him Lincoln’s particular gratitude.
