What effect did the civil war have on Tennessee?

There were three battles fought at Chattanooga, Tennessee. They were:

The first Battle of Chattanooga on June 7-8, 1862 was a minor artillery bombardment.

The second Battle of Chattanooga on August 21, 1863 resulted in Bragg evacuating the city after bombardment of Union artillery.

The third Battle of Chattanooga, or the Chattanooga Campaign, resulted in Grant defeating Confederate General Braxton Bragg. It was fought November 23-25, 1863.