Following his retreat after losing Tullahoma, it was here that Confederate General Braxton Bragg made his final stand against Union advancement in Tennessee. It was also at this battlefield that General Bragg finally lost Eastern Tennessee to the Union.
Following the Battle of Chattanooga, Confederate troops had kept the Union army bottled up around Chattanooga for two months. They were able to achieve this by controlling the high ground around the city and using the area's natural landscape to create a semicircle blockade around the town. Union troops were hard-pressed and running low on supplies when General Ulysses S. Grant assumed direct command of the Union troops in Chattanooga.
Upon General Grant's arrival the Union troops quickly began to reverse their situation. By late October troops had managed to seize back control of the Tennessee River from the Confederates and establish a supply line. This line would come to be called the Cracker Line and holds it importance by having it own historical marker located within the park. After supplies became coming in Union soldiers wasted no time in maneuvering out of their besieged city.
In late November Union forces managed to make an offensive push back against the Confederates. After a couple days of trying to hold back the advancing North, Southern troops were forced to retreat and set up defenses at the top of Missionary Ridge. From here one of the greatest Union victories of the war took place. Under the commanding orders of General Grant, Maj. Gen. George H. Thomas stormed the Confederate rifle pits and managed to overtake and secure them. Then, without orders, Thomas' men continued their advancement up the ridge and broke the enemy's defenses. This caused a full on retreat of the Confederates and effectively surrendered Tennessee back to the Union.