After the North Vietnamese revealed that they were able to sustain erm a w er their war in er erm the south it seemed regardless of what, what the United States could do to them, er after they'd revealed this in the Tet offensive of nineteen sixty eight, then President Johnson announced he would not be standing for re-election, and that was a significant admission of political defeat  and if you remember, well you probably won't  remember but you  certainly should've read about it, President Nixon was returned with a, a majority er er on the platform of ending the Vietnam war.