Okhirhoi soli 1941 amaliyoti harbi ba havzai Uqyonusi Orom ham rasid. Tavre ki dar bolotar gufta budem, Jopon hanuz tobistoni hamon sol Hindu CHinro ishgol kard. Dar havzai Uqyonusi Orom Jopon inchunin mulkhoi Hollandiya, IMA va Angliya- ro niz ba dast ovardani bud. Hukumati Jopon hamzamon bo Hukumati IMA dar borai tanzimi munosibathoi bayni ham guftushunid mekard. In muzokirot maqsad dosht, ki IMA-ro dar gaflat guzoshta, baroi ba poygohi floti IMA nogahoni hamla kardan tayyory binad.
Malum bud, ki Jopon bar ziddi IJSHS hatman jang khohad kard. Inro rohbaroni IMA ham medonistand, vale on vaqt Jopon ba in ikdom dast nazad, chunki sharoit hanuz baroi hamla bar ziddi IJSHS muhayyo nabud. Rohbaroni olii siyosiyu harbii Jopon niyat doshtand, ki avval zakhirahoi iqtisodii anglisi, amerikoi va mulkhoi Hollandiyaro dar Osiyoi Janubu SHarqi va havzai Uqyonusi Orom ba dast orand va ba- di on ki IJSHS dar jangi ziddi Olmon bequvvat shud, bar ziddi on tajovuz tashkil kunand.
7 dekabri soli 1941 chuzu tomhoi floti muttahidai harbiyu bahrii Jopon, ki dar hayati on yakchand kishtii havopaymobar niz bud, gayrichashmdosht ba floti harbiyu bahrii IMA, ki dar poygohi Pirl – Harbori chazirahoi Gavay mustaqar bud, hamla kardand. Dar natichai in IMA 18 kishtii kalon, az on chumla 8 kishtii «Linkor», kishtihoi ziyodi khurdtar va havopaymohoi harbiashro talaf dod. Badi 3 ruz havopaymohoi Jopon eskadrilyai dar Uqyonusi Orom budai Britaniyai Kabirro ham gululaboron kardand. Hamin tariq, Jopon dar Uqyonusi Orom bartarii khudro az chihati neruhoi harbiyu bahri tamin namud. Badi in baroi dar Osiyoi Janubu SHarqi va Uqyonusi Orom vase karda- ni mintaqai istiloi Jopon imkoni vasetar muhayyo shud. Jopon mohi dekabri soli 1941 – marti soli 1942 Filippin, Tailand, Birma, Ma- layziya, Singapur va Indoneziyaro zabt kard. Hamin tariq, Jopon dar muddati kutoh dar SHarqi Dur, Uqyonusi Orom va Osiyoi Janubu SHarqi qismi ziyodi maqsadhoi strategii khudro hal namuda, mulkhoi mustam- likavii IMA, Angliya va Hollandiyaro, ki 3 millionu 800 hazor km masohat va 150 million nafar aholi doshtand, ishgol kard.
Soli 1941 maydoni harbu zarbi Jangi duyumi chahoni khele vase shud. Ba on davlathoi nav vo- rid shudand. 11 dekabri soli 1941 Olmon va Ita- liya ba IMA chang elon kardand. Javoban ba in Kongressi IMA niz ba Olmon va Italiya chang elon namud.