<prompt> Pedzisa mutsara unotevera: Anenge makore maviri pashure pokubva kwakazara kweU.S. muIndochina mukuwirirana nemitemo yeParis Peace Agreements ya1973, PAVN yakatanga Spring Offensive yakanangidzirwa pakubatanidza Vietnam. Pasina rutsigiro rwakananga rweU.S., uye vachitambura nekushushikana kunokonzerwa nekuderedza rubatsiro, ARVN yakanga isina kugadzirira kusangana nePAVN yakakurudzirwa zvikuru, uye pasinei nehuwandu hwepamusoro hweARVN, PAVN yakakurumidza kuwana kukunda mukati memwedzi miviri uye  <response>: Saigon yakatorwa musi wa 30 April 1975, zvichiguma nokurwisana kwamakore 70 kwakabva pakupinda kweFrance muFrance muzana remakore rechi19 uye kubatanidza Vietnam. 