On the day after the Battle of Lookout Mountain, Major General Ulysses S. Grant orders an attack against General Braxton Bragg's Confederate forces on Missionary Ridge, a high point outside of Chattanooga, Tennessee. Despite the seemingly impregnable position of the Confederates, the Union assault succeeds in routing Bragg's forces. By the end of the battle and the Chattanooga Campaign, the Confederate Army has lost one of its two largest armies, and the Union holds Tennessee and the city of Chattanooga, which will serve as a base for Sherman's 1864 Atlanta Campaign.