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.
Fort Johnston (Leesburg, Virginia) In 1862, when Loudoun County was invaded by the Union army, the fort was abandoned and later occupied by the Federals who rechristened it Fort Geary in honor of their commander. Throughout the war, Leesburg was rarely held in force by either side of the conflict and the fort saw little use. Today, parts of the earthworks of the fort still exist, and are located on private property on Fort Johnston Road. Fort Johnston (Leesburg, Virginia) Fort Johnston, also known as Fort Geary, is a Civil War era earthen fort atop a peak of Catoctin Mountain just west of Leesburg,