The United States Army in the Eastern Theater

< to June • July 1862 • to August >

From April 4 to July 23, 1862 there was no commander in chief of the army.

Commanded by Major General Henry Halleck after July 23

Army of the Potomac
(operating in Virginia)

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