The Battle of Peachtree Creek was fought in Georgia on July 20, 1864, as part of the Atlanta Campaign in the American Civil War.[3] It was the first major attack by Lt. Gen. John Bell Hood since taking command of the Confederate Army of Tennessee.[4] The attack was against Maj. Gen. William T. Sherman’s Union army which was perched on the doorstep of Atlanta. The main armies in the conflict were the Union Army of the Cumberland, commanded by Maj. Gen. George Henry Thomas and two corps of the Confederate Army of Tennessee.
Sherman had launched his grand offensive against the Army of Tennessee in early May. For more than two months, Sherman’s forces, consisting of the Army of the Cumberland, the Army of the Tennessee and the Army of the Ohio, sparred with the Confederate Army of Tennessee, then under the command of General Joseph E. Johnston. Although the Southerners gained tactical successes at the Battle of New Hope Church, the Battle of Pickett’s Mill, and the Battle of Kennesaw Mountain, they were unable to counter Sherman’s superior numbers. Gradually, the Union forces flanked the Confederates out of every defensive position they attempted to hold. On July 8, Union forces crossed the Chattahoochee River, the last major natural barrier between Sherman and Atlanta.[5]
Retreating from Sherman’s advancing armies, General Johnston withdrew across Peachtree Creek, just north of Atlanta, and laid plans for an attack on part of the Army of the Cumberland as it crossed Peachtree Creek. On July 17, he received a telegram from Confederate President Jefferson Davis relieving him from command. The political leadership of the Confederacy was unhappy with Johnston’s lack of aggressiveness and replaced him with Hood.[6] In contrast to Johnston’s conservative tactics and conservation of manpower, Hood had a reputation for aggressive tactics and personal bravery on the battlefield. In fact he had already been maimed in battle twice within the past year, having personally led several assaults. Hood formally took command on July 18 and launched the attempted counter-offensive.[7]
It was not until July 19 that Hood learned of Sherman’s split armies advancing a swift attack from multiple directions. Thomas’s Army of the Cumberland was to advance directly towards Atlanta, while the Army of the Ohio under the command of Major General John M. Schofield, and the Army of the Tennessee under the command of Major General James B. McPherson quickly moved several miles towards Decatur so as to advance from the northeast.[7] This was apparently an early premonition of Sherman’s general strategy of cutting Confederate supply lines by destroying railroads to the east. Thomas would have to cross Peachtree Creek at several locations and would be vulnerable both while crossing and immediately after, before they could construct breastworks.
Hood hoped to attack Thomas while his army of Cumberland was still in the process of crossing Peachtree Creek. Hood also sent forth the corps under Alexander P. Stewart and William J. Hardee to meet Schofield and McPherson. By so doing, the Southerners could hope to fight with rough numerical parity and catch the Northern forces by surprise. Hood thus sought to drive Thomas west, further away from Schofield and McPherson. This would have forced Sherman to divert his forces away from Atlanta.[7]
Battle
Throughout the morning of July 20, the Army of the Cumberland crossed Peachtree Creek and began taking up defensive positions. The XIV Corps, commanded by Major General John M. Palmer, took position on the right. The XX Corps, commanded by Major General Joseph Hooker (the former commander of the Army of the Potomac who had lost the Battle of Chancellorsville) took position in the center. The left was held by a single division (John Newton’s) of the IV Corps, as the rest of that corps had been sent to reinforce Schofield and McPherson on the east side of Atlanta. The Union forces began preparing defensive positions, but had only partially completed them by the time the Confederate attack began.[8]
The few hours between the Union crossing and their completion of defensive earthworks were a moment of opportunity for the Confederates. Hood committed two of his three corps to the attack: Hardee’s corps would attack on the right, while the corps of General Stewart would attack on the left as the corps of General Benjamin Cheatham would keep an eye on the Union forces to the east of Atlanta.
Hood had wanted the attack launched at one o’clock, but confusion and miscommunication between Hardee and Hood prevented this from happening. Hood instructed Hardee to ensure that his right flank maintained contact with Cheatham’s corps, but Cheatham began moving his forces slightly eastward. Hardee too began side-stepping to the east to maintain contact with Cheatham, while Stewart began sliding eastward as well in order to maintain contact with Hardee. It was not until three o’clock that this movement ceased.[9]
The Confederate attack was finally mounted at around four o’clock in the afternoon. On the Confederate right, Hardee’s men ran into fierce opposition and were unable to make much headway, with the Southerners suffering heavy losses. The failure of the attack was largely due to faulty execution and a lack of pre-battle reconnaissance.
On the Confederate left, Stewart’s attack was more successful. Two Union brigades were forced to retreat, and most of the 33rd New Jersey Infantry Regiment (along with its battle flag) were captured by the Rebels, as was a 4-gun Union artillery battery. Union forces counterattacked and after a bloody struggle, successfully blunted the Confederate offensive. Artillery helped stop the Confederate attack on Thomas’ left flank.
A few hours into the battle, Hardee was preparing to send in his reserve, the division of General Patrick Cleburne, which he hoped would get the attack moving again and allow him to break through the Union lines. An urgent message from Hood, however, forced him to cancel the attack and dispatch Cleburne to reinforce Cheatham, who was being threatened by a Union attack and in need of reinforcements.
The Union lines had bent but not broken under the weight of the Confederate attack, and by the end of the day the Rebels had failed to break through anywhere along the line. Hood withdrew into defenses of Atlanta the following day, 21 July.[4] Estimated casualties were 4,250 in total: 1,750 on the Union side, including McPherson, and at least 2,500 on the Confederate.[2]
Content retrieved from: https://en.wikipedia.org/wiki/Battle_of_Peachtree_Creek.