Well Truman told Ho Chi Mhin to pound sand to unify Vietnam in early 50's or he would have to make a deal with his enemies China. He did and France had no chance. We put advisor's in under Eisenhower and increased them under Kennedy. Under Kennedy Diem was assassinated under our orders by the CIA. The corruption was in S Vietnam. We never ever should have been involved as short of nuclear bombs there was no way we could have won.