Vietnam.

This film montage is about most wasteful war in 20th Century. Over 2,5 million Americans served in Vietnam. The US military lost 47,253 in combat and another 10,449 died in Vietnam; there were 313,616 wounded. North Vietnam and the Vietcong reportedly lost 924,048 dead in combat. Vietnam is estimated to have lost 415,000 civilians in the war, with at least 935,000 wounded. During Vietnam conflict, America dropped nearly 8 million ton of bombs between years 1965 and 1973 - more than the entire total