A lokacin yakin duniya na biyu, sojojin Japan sun mamaye kuma sun mamaye Malaya, Arewacin Borneo, Sarawak, da Singapore sama da shekaru uku. A wannan lokacin, an tayar da tashin hankali na kabilanci kuma kishin kasa ya karu. Tallafin jama'a ga 'yancin kai ya karu bayan da sojojin Allied suka sake mallaka Malaya. Shirye-shiryen Burtaniya na bayan yakin don haɗa kan gwamnatin Malaya a ƙarƙashin mulkin mallaka guda da ake kira "Malayan Union" ya gamu da adawa mai ƙarfi daga Malays, waɗanda suka yi adawa da raunana sarakunan Malay da kuma ba da ɗan ƙasa ga' yan asalin kasar Sin.
Tun Abdul Razak