Confederate forces turn back the Union invasion of Georgia at Chickamauga (1863)

The Battle of Chickamauga, fought September 18–20, 1863, marked the end of the Union Chickamauga Campaign in southeastern Tennessee and northwestern Georgia. It was the first major battle in Georgia and the most significant Union defeat in the Western Theater, involving the second-highest casualties after Gettysburg. Union forces retired to Chattanooga, where Confederates occupied surrounding heights and besieged the city.

Episodes

Background and detail

Background. In early September 1863, Union General Rosecrans consolidated forces scattered in Tennessee and Georgia, forcing Confederate General Bragg's army out of Chattanooga. Bragg had previously been forced to abandon Middle Tennessee during the Tullahoma Campaign. The West Chickamauga Creek forms the southeast boundary of the battle area in northwest Georgia. Bragg's tendency to bypass wing commanders caused confusion before the battle.

Strategic Context. The battle represented the Confederates' last realistic chance to take tactical offense within a strategic defense, aiming to destroy the Union Army of the Cumberland. A major victory could have erased Union gains from the Tullahoma Campaign and eliminated threats to Atlanta. Such a reversal in late 1863 could have severely harmed President Lincoln's re-election chances in 1864.

Aftermath. Following the battle, Union forces retired to Chattanooga while Confederates occupied surrounding heights, besieging the city. Supply lines into Chattanooga were at risk. The Army of Tennessee took defensive positions on Missionary Ridge and Lookout Mountain. This siege preceded the subsequent Battles for Chattanooga, including Lookout Mountain and Missionary Ridge in November 1863.

People involved

Sources

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