The United States Army in the Eastern Theater


< to July • August 1862 • to September >

Commanded by Major General Henry Halleck

Army of the Potomac
Major General George B. McClellan

Army of Virginia 
Major General John Pope

Department of Virginia
Major General John Dix 

Middle Department
Major General John E. Wool

Military Dist. of Washington 
Brigadier General James S. Wadsworth

Army of the Potomac
(operating in Virginia)

Army of Virginia 

Dept. of Virginia

Middle Department

 
Military Dist. of Washington