Rubuta ci gaba don wannan sakin layi - Jafananci sun mamaye arewacin Luzon 'yan kwanaki bayan harin da aka kai wa Pearl Harbor a ranar 7 ga Disamba 1941 wanda ya kawo Amurka cikin yakin. Sun ci gaba da sauri, tare da sauran saukowa a wasu wurare, musamman a Legazpi a kudu maso gabashin Luzon a ranar 12 ga Disamba, Davao a Mindanao a ranar 20 ga Disamba, da Lingayen Gulf a ranar 22 ga Disamba. A ranar 26 ga Disamba, 1941 aka ayyana Manila a matsayin birni mai budewa, tare da gwamnatin Philippines da kuma hedkwatar MacArthur da aka kwashe zuwa Ramin Malinta. A tsakiyar kwashewar, an gudanar da bikin sake buɗewa don wa'adin shugaban ƙasar Philippines Manuel Quezon na biyu a waje da ramin a ranar 30 ga Disamba. Jafananci sun shiga Manila a ranar 2 ga Janairu, 1942. Kwana biyar bayan haka sojojin Amurka da Philippines sun kammala yakin da suka yi a yankin Bataan, arewa maso yammacin Corregidor, kuma sun shirya don kare shi. A arewacin Philippines, wannan ya bar Bataan, Corregidor, da Fort Hughes, Frank, da Drum a hannun Allies. An yi tsammanin wannan yanayin a cikin shirin War War na Orange-3 kafin yakin, wanda a karkashinsa ake sa ran dakarun da ke cikin Philippines za su tsaya a bakin bakin Manila Bay har tsawon watanni shida. A wannan lokacin an yi tsammanin cewa za a iya kawo kayan agaji daga Amirka. Janar MacArthur ya yi fatan kare Philippines da karfi a karkashin Tsarin Rainbow, kuma ya sami damar samun wasu ƙarfafawa a cikin watanni kafin Amurka ta shiga yakin, amma wannan ya fadi tare da saurin ci gaban Japan a watan Disamba na 1941. Kuma, tare da kusan dukkanin jiragen ruwa na Pacific Fleet sun lalace a Pearl Harbor, kuma Jafananci suna ci gaba a sassa da dama na kudu maso gabashin Asiya a cikin mafi girma fiye da yadda aka sa ran, ba a shirya ba. Kodayake 'yan Philippines sun gudanar da manyan ayyukan' yan tawaye tare da goyon bayan Amurka, sojojin Amurka ba su dawo cikin Philippines ba har sai mamayewar Leyte Gulf
a watan Oktoba 1944.