Chattanooga Campaign
Hardee returned to Bragg's army after the Battle of Chickamauga, taking over the corps of Leonidas Polk at Chattanooga, Tennessee, besieging the Union Army there. During the Chattanooga Campaign in November 1863, Hardee's Corps of the Army of Tennessee was defeated when Union troops under Maj. Gen. George Henry Thomas assaulted their seemingly impregnable defensive lines at the Battle of Missionary Ridge.