How did we win almost every major battle, but end up on the short end of the stick?
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Partially because the real battlefield was moved. In that battle people such as Joan Baez and Jane Fonda were the generals and won the real war taking place here.
Sounds like you weren't there....because if you had been you would know that the war was a political charade and the US armed forces were prohibited from executing the victory. After the bombing stopped--prematurely, I might add--we were not allowed to fight to win.
In the end we were ordered home by politicos who saw their re-elections being more impacted by the likes of Fonda and Cronkite than the true meaning of "Peace with Honor".