Ulysses S. Grant begins his drive on the Confederate stronghold at Vicksburg by securing an important town for his supply base.
Ulysses S. Grant experiences many obstacles while trying to advance his Federal Army of the Tennessee southward into northern Mississippi.
Heated exchanges between Ulysses S. Grant and William S. Rosecrans ultimately give Rosecrans an opportunity for an independent command.
Ulysses S. Grant is given new Federal responsibilities, and a secret mission to capture Vicksburg is concocted.
As Henry W. Halleck prepares to go to Washington to become general-in-chief, he reorganizes the armies within his Department of the Mississippi.
Henry W. Halleck returns his “Grand Army” to three separate armies, with the main objective to be a campaign to seize the key railroad town of Chattanooga.