In September of 1863, the Confederates occupied Lookout Mountain and Missionary Ridge. However, things quickly changed as Ulysses S. Grant is given the reins to command the Union.
It was from this location on November 24, 1863 that Confederate Troops were defeated when the Union attacked Lookout Mountain.
The Confederate Army of Tennessee, lead by General Braxton Bragg, were pushed back allowing the Union to make their way further South.