The Army of the Potomac was the primary field army of the Union Army in the Eastern Theater of the American Civil War. It was created in July 1861 shortly after the First Battle of Bull Run and was disbanded in June 1865 following the surrender of the Confederate Army of Northern Virginia in April.
Generals of the Army of the Potomac at Culpeper, Virginia in September 1863, including (from left to right): Gouverneur K. Warren, William H. French, George G. Meade, Henry J. Hunt, Andrew A. Humphreys, and George Sykes
The Army of the Potomac – Our Outlying Picket in the Woods, an illustration of the Army of the Potomac by Winslow Homer published in Harper's Weekly on June 7, 1862
Grand Review of the Army of the Potomac, an October 1863 illustration by Thomas Nast in Harper's Weekly
An illustration of the Army of the Potomac celebrating Saint Patrick's Day with a steeplechase race among the Irish Brigade, drawn by Edwin Forbes on March 17, 1863
Eastern theater of the American Civil War
The eastern theater of the American Civil War consisted of the major military and naval operations in the states of Virginia, West Virginia, Maryland, and Pennsylvania, the District of Columbia, and the coastal fortifications and seaports of North Carolina.
President Lincoln visiting the Army of the Potomac at the Antietam battlefield, September 1862. Photo by Alexander Gardner.
Lt. Gen. Ulysses S. Grant, USA
Maj. Gen. George B. McClellan, USA
Maj. Gen. Irvin McDowell, USA