Answer:
D.Vicksburg
Explanation:
The Vicksburg campaign was a series of battles and maneuvers of the American Civil War against Vicksburg, a fortress city that dominated the last section of the Mississippi River controlled by the Confederates. The Tennessee Army commanded by Major General Ulysses S. Grant gained control of the Mississippi River by capturing the fortress and defeating the forces of Lieutenant General John C. Pemberton.
The campaign consisted of many important naval operations, maneuvers, failed initiatives and eleven battles that took place between November 3, 1862 and July 4, 1863. Military historians divide the campaign into two formal phases. The first phase is called Operations against Vicksburg (November 1862-January 1863) and the second Grant Operations against Vicksburg (March-July 1863).
