<prompt> Ngwala tšwetšopele ya serapa se - Ntwa ya Vietnam e be e le ntwa yeo e lwelwego magareng ga 1955 le 1975 nageng ya Borwa bja Vietnam le mafelo ao a lego mollwaneng wa Cambodia le Laos bona Ntwa ya Sephiri  <response>: Bona Operation Rolling Thunder ya ka Leboa la Vietnam. Baeletši ba ma-Amerika ba ile ba tla mafelelong a bo-1950 go thuša RVN Republic of Vietnam go lwantšha marabele a Bokomanisi ao a tsebjago e le Viet Cong. Go akaretšwa mo gogolo ga mašole a Amerika go thomile ka 1964, ka morago ga ge Kopano e neile Mopresidente Lyndon B. Johnson tumelelo ya go diriša matla a mopresidente ka Phetholelong ya Kgogometšaneng ya Tonkin. 