 Ramba uchinyora ndima iyi - Muna 1875 Japan yakatanga kurwisa Joseon Korea, imwe ndima yaikwezva kwemazana emakore; chiitiko cheGanghwa Island chakaita kuti Korea itange kutengeserana nedzimwe nyika. Korea yakabatanidzwa muna 1910. Somugumisiro wokukunda Hondo yeRussia neJapan muna 1905, Japan yakatora chikamu cheSakhalin Island kubva kuRussia. Chaizvoizvo, kukunda paUmambo hweRussia kwakazunungusa nyika: hakuna rudzi rweAsia rwakanga rwambokunda simba reEurope, uye muJapan kwakanga kuchionekwa sechibayiro. Kukunda kweJapan kurwisa Russia kwaizoshanda somucherechedzo nokuda kwenyika dzeAsia mukurwisana namasimba okuMadokero nokuda kweDhekolonization. Mukati meHondo yeNyika I, Japan yakatora nzvimbo dzakarendwa neGermany muChina Shandong Province, pamwe chete neMariana, Caroline, uye Marshall Islands, uye yakachengeta zviwi seMitemo yeLigi yenyika. Pakutanga, Japan yakanga iri mumamiriro akanaka nemasimba akabudirira eAllied muHondo Yenyika I, asi kusawirirana kwakasiyana uye kusagutsikana nemubairo wezvibvumirano zvakatonhora hukama navo, semuenzaniso kumanikidzwa kweAmerica kwakamanikidza kudzorera nzvimbo yeShandong. Pakazosvika makore okuma30, kuderera kwezvemari, kushayikwa kwezvinhu zvokushandisa uye kusavimba kwakanga kuchiwedzera nemasimba eAllied kwakaita kuti Japan itange kuita zvechiuto zvakasimba. Mukati memakore gumi, raizokura pedyo neGermany neItaly, richiumba pamwe chete mubatanidzwa weAxis. Muna 1931 Japan yakatora Manchuriakubva kuChina. Mhinduro dzamarudzi akawanda dzakashurikidza ichi chiito, asi kusava nechokwadi kwakasimba kweJapan kunorwisana nemarudzi akabatana kwakaratidzira kuti kunyange zvakadaro kwakaramba kuchiitwa. 