pls help i will fail if i dont do this why did the u. s. loss the Vietnam war give evidence from sorces and in tour own words i will post anthor question and give the rest of my points to whoever gives me something i can use​​

Basically because the Vietnamese wanted to win more than the Americans did. There were a couple of reasons for this. First, the Americans were an invading force, and the Vietnamese were fighting on their own soil. Second, the Americans were not willing to make an all-out commitment to win.