 MaJapan akatumidza zita reSingapore, kubva muchiJapanese, kana kuti chitsuwa chokumaodzanyemba chakawanikwa munguva yaShōwa, uye vakachiva kusvikira vaBritain vatorazve chitsuwa chacho musi wa12 September 1945, mwedzi mumwe pashure pokunge maJapan akundwa. Zita rokuti Shōnantō rakanga riri, panguva iyoyo, romanized se Syonan-to kana Syonan, apo mavara 昭南 chaizvoizvo anoshandura kuti Chiedza cheSouth. 