 Ramba uchinyora ndima iyi - Japan yakabatana neAllies yeHondo Yenyika Yokutanga ichitarisira kugoverana muzvipfuwo zvichitevera kukunda. Japan yakawana zvikamu zvishoma zvenharaunda nekukunda zvinhu zvakapararira zveHumambo hweGerman muPacific neChina pachinangwa cheAllied asi nyika dzeEntente dzakadzosera kumashure nesimba kuedza kweJapan kutonga China kuburikidza neZvinodiwa makumi maviri nerimwe zva1915. Kutora kwayo Siberia kwakaratidza kuva kusina zvibereko. Kutaura kwomuJapan munguva yehondo uye chiito chechiuto chakaganhurirwa pakupedzisira zvakabereka migumisiro mishomanene yenguva refu. PaParis Peace Conference muna 1919, zvikumbiro zveJapan zvokuzivikanwa kwokuenzana kwedzinza pakati penyika dzakabatana dzakakunda zvakarambwa. Pashure pokuguma kwehondo, Japan yakatanga kunyura zvikuru mukuzviparadzanisa kworutivi rwenyika. Chibvumirano cha1902 neBritain hachina kuvandudzwa muna 1922 nemhaka yokumanikidzwa kukuru kweBritain neCanada neUnited States. Muma1920s hurumende yeJapan yakanga yakadzika midzi mugadziriro yezvematongerwe enyika yerusununguko, uye yaifarira nyika dzakawanda. Zvisinei, pakazosvika pakati pema1930, Japan yakanga ichidzokera kumashure nokukurumidza, ichiramba demokrasi mudzimba, sezvo Mauto akatora simba rakawanda, uye achiramba kurwisa nyika dzose uye rusununguko. Pakupera kwama 1930 Japan yakanga ichivaka ukama hwapedyo zvikuru neGermany yeNazi neItaly yeFascist. 