Ambrose Powell Hill, Jr. (November 9, 1825 – April 2, 1865), was a career U.S. Army officer in the Mexican–American War and Seminole Wars and a Confederate general in the American Civil War. He gained early fame as the commander of the "Light Division" in the Seven Days Battles and became one of Stonewall Jackson's ablest subordinates, distinguishing himself in the 1862 battles of Cedar Mountain, Second Bull Run, Antietam, and Fredericksburg. Hill is usually referred to as A. P. Hill, to differentiate him from another prominent (unrelated) Confederate general, D. H. Hill.