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.
Henry W. Halleck combines three Federal armies in southwestern Tennessee to start a methodical advance on the vital railroad town of Corinth, Mississippi.
Both Federals and Confederates claim victory after a terrible two-day battle, while the shock of such enormous human loss starts to sink in.
Reinforced Federals launch a counterattack in southwestern Tennessee, and one of the most horrific battles of the war comes to an end.
Federal forces advance into Tennessee following the fall of Fort Donelson and seize the first Confederate state capital of the war.
Don Carlos Buell looks to secure eastern Tennessee for the Federals, but weather and a lack of supplies hamper the mission.