The United States Army in the Eastern Theater
< to September • October 1862 • to November >
Commanded by Major General Henry Halleck
Army of the Potomac
Major General George B. McClellan
Department of Virginia
Major General John Dix
Middle Department
Major General John E. Wool
Washington D.C. Defenses
Major General Nathaniel Banks (to 10/27)
Major General Samuel Heintzelman