Army of Virginia Army of Virginia The Army of Virginia was organized as a major unit of the Union Army and operated briefly and unsuccessfully in 1862 in the American Civil War. It should not be confused with its principal opponent, the Confederate Army of "Northern" Virginia, commanded by Robert E. Lee. 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.
First Corps, Army of Northern Virginia months, Longstreet would serve as head of the Department of Southern Virginia and North Carolina. Starting on April 11, Longstreet used his two divisions to lay siege to Suffolk, in order to better collect supplies in the area near the city. After three weeks he was ordered to abandon the siege and return to Lee's main army but the Battle of Chancellorsville ended before Longstreet arrived. Note: see Gettysburg order of battle for the command structure of the Army of Northern Virginia at this time. Following the death of Jackson in May, the Army of Northern Virginia was reorganized into