America's longest war, and its first defeat, thus concludes. During 15 years of military involvement, over 2 million Americans served in Vietnam with 500,000 seeing actual combat. 47,244 were killed in action, including 8000 airmen. There were 10,446 non-combat deaths. 153,329 were seriously wounded, including 10,000 amputees. Over 2400 American POWs and MIAs were unaccounted for as of 1973.