XXII Corps (Union army)

XXII Corps
Badge of the 3rd Division of the XXII Corps [1]
Active	February 2, 1863 – June 26, 1865
Country	United States
Allegiance	Union Army
Type	Infantry and Cavalry
Part of	Department of Washington
Colors	White background, red badge (1st Division) Blue background, white badge (2nd Division) White background, blue badge (3rd Division)
Engagements	Eastern Theater: • Valley Campaigns of 1864 • Battle of Fort Stevens • Skirmishes with Mosby's Rangers
Commanders
First Commander	Major General Samuel P. Heintzelman
Second Commander	Major General Christopher C. Augur
Third Commander	Major General John G. Parke

XXII Corps was a corps in the Union Army during the American Civil War. It was created on February 2, 1863, to consist of all troops garrisoned in Washington, D.C.,^[2] and included three infantry divisions and one of cavalry (under Judson Kilpatrick, which left to join the Army of the Potomac during the Gettysburg campaign). Many of its units were transferred to the Army of the Potomac during Grant's Overland Campaign.^[2]

This Corps did not include the many regiments that passed through Washington, D.C., on the way to the front or away from it. Nor does it include the many regiments from the Army of the Potomac, Army of Georgia, and Army of the Tennessee that encamped in the area to participate in the Grand Review of the Armies.