Pedzisa mutsara unotevera: Lee akaramba kuti Vietnam ipinde muCambodia muna 1978. Hurumende yeSingapore yakaronga mushandirapamwe wenyika dzakawanda wokushora Vietnam uye yakapa rubatsiro kuKhmer Rouge iyo yakanga ichirwisana neVietnamese munguva yeHondo Yenyika II.
Hondo yeCambodian neVietnam kubva muna 1978 kusvika muna 1989. Muzviyeuchidzo zvake, Lee akarondedzera kuti muna 1982, "Singapore yakapa mapoka okutanga mazana mashomanene ehondo dzeAK-47, magirinedhi emaoko, zvombo uye midziyo yokutaurirana" kumapoka okurwisana eKhmer Rouge.