The Army of Virginia was constituted on June 26, 1862, by General Orders Number 103, from four existing departments operating around
Virginia: Maj. Gen.
John C. Frémont's Mountain Department, Maj. Gen.
Irvin McDowell's Department of the Rappahannock, Maj. Gen.
Nathaniel P. Banks's Department of the Shenandoah, and Brig. Gen.
Samuel D. Sturgis's brigade from the Military District of Washington. Maj. Gen.
John Pope commanded the new organization, which was divided into three corps of over 50,000 men. Three corps of Maj. Gen.
George B. McClellan's
Army of the Potomac later were added for combat operations.
Radical Republicans in Congress and the Cabinet saw the Army of Virginia as taking the lead in widening the goals of the war. The senior officers of the Army were stronger advocates of the abolition of slavery and the southern way of life and had a smaller proportion of West Point graduates than the contemporary
Army of the Potomac. Banks's corps of the Army of Virginia fought against
Stonewall Jackson at the
Battle of Cedar Mountain, gaining initial advantage, but was defeated by a Confederate counterattack led by
A.P. Hill. The entire army was soundly defeated at the
Second Battle of Bull Run by Jackson,
Longstreet, and Lee, and withdrew to the defensive lines of
Washington, D.C. On September 12, 1862, the units of the Army of Virginia were merged into the Army of the Potomac and the Army of Virginia was never reconstituted. ==Commander==