Yakin Pacifi, kuma akan kirasa da Yakin Asiya–Pacific, yakasance filin Da-ga ne a lokacin Yakin Duniya II da aka gwabza a Pacific da Asiya. Anyi yakin ne a wani babban fili daya hada da tekun Pacific da tsibirai, South West Pacific, South-East Asia, da kuma dake China (harda 1945 Soviet–Japanese conflict). Second Sino-Japanese War tsakanin Daular Japan da Republic of China yariga faruwa tun a 7 July 1937, da hostilities daya faro tun daga 19 September 1931 da kuma Japanese invasion of Manchuria. Dukda, an yarda ako'ina a tsawon watanni 53, wanda yafara a July 1937, China ita kadai, ta rika yaki da kasar Japan. A 9 ga watan December 1941, bayan Japan takai wani hari nabazata kan Pearl Harbor, sai daga China ta kaddamar da yaki kan Japan. Abunda da dadewa yakine tsakanin kasashe biyu yanzu yazama wani babban bangaren yaki a yankin na Pacific." yakin na Pacific yafara ne a 7/8 December 1941, sanda Japan invaded Thailand da kuma kai hari kan British colonies na Malaya, Singapore, da Hong Kong da kuma sojoji da sansanin sojin ruwan United States dake a Hawaii, Wake Island, Guam da the Philippines.