In March 1864, Grant was summoned from the Western Theater, promoted to lieutenant general, and given command of all Union armies. He chose to make his headquarters with the Army of the Potomac, although Maj. Gen. George G. Meade remained the actual commander of that army. He left Maj. Gen. William Tecumseh Sherman in command of most of the western armies. Grant and President Abraham Lincoln devised a coordinated strategy that would strike at the heart of the Confederacy from multiple directions, including attacks against Lee near Richmond, Virginia, and in the Shenandoah Valley, West Virginia, Georgia, and Mobile, Alabama. This was the first time the Union armies would have a coordinated offensive strategy across a number of theaters.