Adid you know question. did you know that the united states classifies the vietnam war as a "conflict" due to the fact that we lost that war? and did you know that the u. s government says we've never lost a war despite the fact that we have? the united states did not lose the vietnam war, although some may argue that by pulling out of south vietnam we did just that. in 1972, north vietnam finally realized that the war was a stalemate. the two sides met and arranged a cease fire.