The Battle of Chattanooga was fought from November 23 through November 25, 1863, during the Chattanooga Campaign. Union forces under General Ulysses S. Grant captured Orchard Knob, forced the Confederates to abandon Lookout Mountain, and drove General Braxton Bragg’s Army of Tennessee from Missionary Ridge. The Union victory ended the Confederate Siege of Chattanooga, forced Bragg’s army into Georgia, and opened the way for General William T. Sherman’s Atlanta Campaign.