Over 58,000 men killed, over 300,000 men wounded, 8,000 helicopters shot down or destroyed (half of those recovered/repaired), over 2,000 fixed wing aircraft destroyed.
Vietnam memorial.
http://thewall-usa.com/names.asp
According to this website:
"The first American soldier killed in the Vietnam War was Air Force T-Sgt. Richard B. Fitzgibbon Jr. He is listed...