The United States Army in the Eastern Theater


< to April • May 1862 • to June >

After April 4, 1862 there was no commander in chief of the army.

Army of the Potomac
Major General George B. McClellan

Department of Virginia
Major General John E. Wool

Middle Department
Major General John Dix

Mountain Department
Major General John C. Fremont

Dept. of the Rappahannock 
Major General Irvin McDowell

Dept. of the Shenandoah
Major General Nathaniel Banks

Army of the Potomac

Dept. of Virginia

Middle Department

 
Mountain Department
(west of the
Dept. of the Shenandoah)

Dept. of the Rappahannock

Dept. of the Shenandoah