The Union POW camp at Andersonville, Georgia was opened in 1864 to relieve overcrowding at other prisons and guard fewer prisoners more remotely. It was located 65 miles from Macon. By June, the hastily constructed 26.5 acre stockade held over 22,000 prisoners, swelling to over 32,000 by August in severely overcrowded and unsanitary conditions that led to rampant disease and 12,912 deaths. After the war, camp commander Henry Wirz was tried and hanged for war crimes relating to conditions at Andersonville.