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 in the first six months from about 46,380 to 62,230 soldiers. The army was assigned in July to the Defense District of North Carolina and Richmond. In the course of the Richmond-Petersburg Campaign the number of soldiers temporarily grew to 82,633 while parts of the Army were under the command by Lieutenant General Early in Shenandoah Valley. In 1864 the Army of Northern Virginia fought against the more than twice as strong Potomac-, James- and Shenandoah Army in Grant's Overland Campaign, Early's Raid against the Baltimore and Ohio Railroad, the Richmond-Petersburg Campaign, and Shenandoah Campaign in the Shenandoah Valley. The