November 1863 --The Battle of Chattanooga-- Grant, brought in to save the situation, steadily built up offensive strength, and on November 23- 25 burst the blockade in a series of brilliantly executed attacks. Union forces pushed Confederate troops away from Chattanooga. The victory set the stage for General Sherman's Atlanta Campaign. http://americancivilwar.com/tl/tl1863.html The Battles of Chattanooga, in the U.S. Civil War, were a series of engagements fought around Chattanooga, Tenn., in September and November 1863. The Confederates were commanded by Braxton Bragg, and the Union forces were first under William S. Rosecrans, then George H. Thomas, and finally Ulysses S. Grant