<prompt> Pedzisa mutsara unotevera: Dũng akaronga uye akatungamirira 1975 Spring Offensive, kurwisa kwekupedzisira kwePAVN kwakakunda kudzivirirwa kweSouth Vietnamese uye  <response>: vakatora Saigon muna 1975. Akatungamirirawo kupindirwa kweVietnam muKhmer Rouge Cambodia uye kurwisana kwemuganhu nePeoples Republic of China muna 1979. Akagadzwa kuva gurukota rezvekudzivirirwa muna 1980. Akasiya basa muna Zvita 1986 pa6th National Congress yeCommunist Party yeVietnam. 