"America was losing or had lost in Vietnam"
I beg to differ.
I beg to set the record straight. Ho Chi Min himself said that they were on the verge of suing for peace when a certain Navy Leiutenant decided to lie in front of Congress, and charge American Soldiers with war crimes. He said the subsequent backlash, and propaganda locomotive it created was the reason they were able to push the U.S. out of South Vietnam. The other fact is that we won more than 80% of the battles that were faught in Vietnam. The NVA could retreat behind the 38th and regroup; we didn't have that luxery.
So, in retrospect, thanks a whole lot HoChiMin Kerry and Hanoi Jane Fonda for selling out your own people to a bunch of communists.