Kammala jumla mai zuwa: Tarayyar Soviet ta yi gwagwarmayar rikice-rikice guda biyu da ba a bayyana su ba tare da Japan a 1938 da kuma a 1939, sannan ta kasance tsaka tsaki ta hanyar yarjejeniyar tsaka tsaki ta Soviet-Japan ta watan Afrilu 1941, har zuwa watan Agusta 1945 lokacin da (da Mongolia) suka shiga sauran Allies da
sun mamaye yankin Manchukuo, China, Inner Mongolia, mai karewa na Japan na Koriya da yankin da Japan ke da'awa kamar Kudancin Sakhalin.