Americans served in the Revolutionary War, War of 1812, Mexican War, Civil War, Spanish-American War, World War I, World War II, Korean War, Vietnam Conflict, Persian Gulf War, the Invasion of Afghanistan, and the Invasion of Iraq, with casualties given as 4,435 in the Revolutionary War, 2,260 in the War of 1812, 13,283 in the Mexican War, 620,000 in the Civil War, 2,446 in the Spanish-American War, 116,516 in World War I, 405,399 in World War II, 36,574 in the Korean War, 58,220 in the Vietnam Conflict, and 382 in the Persian Gulf War; the Civil War total is also broken out as 364,511 Union forces casualties and 258,000 Confederate forces casualties, and World War I is linked with POW-MIA and the Unknown Soldier.