Western Theater of the American Civil War heart of the Confederacy. Bragg, whose personal friendship with Confederate President Jefferson Davis saved his command following his defeats at Perryville and Stones River, was finally relieved of duty and replaced by General Joseph E. Johnston. In March 1864, Grant was promoted to lieutenant general and went east to assume command of all the Union armies. Sherman succeeded him in command of the Military Division of the Mississippi. Grant devised a strategy for simultaneous advances across the Confederacy. It was intended to destroy or fix Robert E. Lee's army in Virginia with three major thrusts (under Meade, Butler, and Sigel)
Army of Northern Virginia The Department comprised three districts: Aquia District, Potomac District, and the Valley District. In April 1862, the Department was expanded to include the Departments of Norfolk and the Peninsula (of Virginia). Gen. Johnston was eventually forced into maneuvering the Army southward to the defenses of Richmond during the opening of the Peninsula Campaign, where it conducted delay and defend tactics until Johnston was severely wounded at the Battle of Seven Pines. During the months after the First Battle of Bull Run, Johnston organized his Shenandoah Army and Beauregard's Potomac Army into two divisions under a unified command with Gustavus Smith