The
Union Army was the land force that fought for the
Union during the
American Civil War, which lasted from 1861 to 1865. It consisted of the small
United States Army, known as the
regular army, which was augmented by massive numbers of units supplied by northern U.S. states, consisting of
volunteers as well as
conscripts. The Union Army fought and eventually defeated the
Confederate States Army during the war. About 360,000 Union soldiers died from all causes and some 280,000 were wounded.