Kammala jumla mai zuwa: Tarayyar Soviet ta tilasta wa kasashen Baltic <unk> Estonia, Latvia da Lithuania, waɗanda ke cikin "yanayin tasiri" na Soviet a ƙarƙashin yarjejeniyar Molotov-Ribbentrop <unk> su sanya hannu kan "yarjejeniyar taimakon juna" wanda ya ƙayyade dakarun Soviet a cikin waɗannan ƙasashe. Ba da daɗewa ba bayan haka, an tura manyan rundunonin sojojin Soviet zuwa can. Finland ta ƙi sanya hannu kan irin wannan yarjejeniya kuma ta ƙi ba da wani ɓangare na ƙasarta ga Tarayyar Soviet. Soviet Union ta mamaye Finland a watan Nuwamba na shekara ta 1939, kuma an fitar da Soviet Union daga Ƙungiyar Al'ummai. Duk da yawan rinjaye na adadi, nasarar soja ta Soviet ta kasance mai tawali'u, kuma sojojin Soviet sun kasance masu tawali'u.
Yakin Finnish-Soviet ya ƙare a watan Maris na 1940 tare da ƙarancin ra'ayoyin Finnish.