<prompt> Pedzisa mutsara unotevera: Urwu ndirwo runyorwa rwevatungamiriri veSouth Vietnam, kubva pakagadzwa Autonomous Republic yeCochinchina muna 1946, uye kupatsanurwa kweVietnam muna 1954 kusvika ku  <response>: kuwa kweRepublic of Vietnam muna 1975, uye kubatanidzwazve kweVietnam muna 1976. 