Kammala jumla mai zuwa: A watan Satumbar 1940, bayan faduwar Faransa kuma bisa ga burin yakin Pacific na Imperial Japan, Sojojin Japan na Imperial sun mamaye Vichy French Indochina, wanda ya ƙare a cikin juyin mulkin Japan da aka yi a cikin Indochina na Faransa na 9 Maris 1945. A ranar 5 ga Janairu, 1941, Thailand ta kaddamar da Yaƙin Franco-Thai, wanda ya ƙare a ranar 9 ga Mayu, 1941 ta hanyar yarjejeniyar da Japan ta sanya hannu a Tokyo. A ranar 7/8 ga Disamba, shigar Japan cikin Yaƙin Duniya na II ya fara ne da mamayewar Thailand, ita ce kawai ƙasar da aka mamaye don kiyaye 'yancin kai na suna, saboda ƙawancen siyasa da soja tare da Jafananci. A ranar 10 ga Mayu, 1942, Sojojin Payap na arewa maso yamma sun mamaye Burma a lokacin Yaƙin Burma. Daga 1941 har zuwa karshen yakin, Jafananci
sun mamaye Kambodiya, Malaya da Philippines, wanda ya ƙare a cikin ƙungiyoyin 'yanci. Harkokin Japan na Philippines ya haifar da kafa Jamhuriyar Philippine ta biyu, wanda aka rushe a Tokyo a ranar 17 ga Agusta, 1945. Hakanan a ranar 17 ga watan Agusta, an karanta sanarwar samun 'Yancin Indonesiya a ƙarshen mamayar Jafananci na Dutch East Indies tun daga Maris 1942.