Confederate General Joseph E. Johnston finds himself at odds with President Jefferson Davis over strategy, and the Confederate secretary of war resigns.

Exploring the most important 55 months in American history
Confederate General Joseph E. Johnston finds himself at odds with President Jefferson Davis over strategy, and the Confederate secretary of war resigns.
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.
Ulysses S. Grant starts moving toward the key town of Vicksburg, Mississippi, unaware that another Federal general was secretly planning to take the town with a different force.
Ulysses S. Grant is given new Federal responsibilities, and a secret mission to capture Vicksburg is concocted.
A new Confederate ironclad blasts through Federal ships and threatens to turn the tide of the war on the Mississippi River.