defeated it? who defeated whom? your souce of information? have you ever visited vietnam and talked to the vietnamese? was it not a fact that the WHOLE of vietnam was mobilised? was it not a fact that the vietnameses thought that the PLA was gonna run over henoi and the city was partly evacuated? listen dude. the PLA trashed the vietnamese army in 1978 the way the PLA thrashed the indian army. the only difference was that while hardly any PLA soldiers died in indian, quite a few perished in vietnam. the vietnamese were better fighters than the indians, but nothing the PLA can't deal with. the PLA withdrew after occupying the capitals of the three vietnamese provinces borddering/close to China, the way the PLA did in 1962. get your facts before you bark.