Tennessee city abandoned by Confederate General Braxton Bragg and occupied by Union General William S. Rosencrans before the Battle of Chickamauga. Reinforced by General Ulysses S. Grant, the Union army overwhelmed Bragg and his Confederates. The Confederates had ringed the city with batteries and troops, strategic positions including Missionary Ridge and Lookout Mountain. Here, though, the Union army did something it could not do at Fredericksburg: seize the high ground. At Missionary Ridge, troops under General H. Thomas, the "Rock of Chickamauga," seized the Confederate gun pits at the base of the hill. Then, without orders from either Thomas or Grant, they stormed up the ridge and routed the Rebels from their perch. Chattanooga would stay Union-occupied, and Northern troops could move northeast or southwest along the Tennessee River to cut the eastern part of the Confederacy in two.
Chattanooga Battle Map
Check it out up close: troop encampments and movements.
The Civil War
The Civil War was one of the most devastating events in American History. Read about the causes, see the heroes, and share the horror. Start here.
Elsewhere on the Web:
Civil War Battles for Chattanooga
Well documented examination of the battles in and around the Tennessee stronghold.
The Chattanooga Campaign Official Records
Lots of details here.