Ka kammala wannan magana: A shekara ta 1939, Tarayyar Soviet ta kasa
an yi yunƙurin mamaye Finland, bayan haka bangarorin suka shiga yarjejeniyar zaman lafiya ta wucin gadi da ke baiwa Tarayyar Soviet yankin gabashin Karelia (kashi 10% na yankin Finland), kuma an kafa Jamhuriyar Socialist ta Karelo-Finnish ta hanyar haɗa yankunan da aka ba su tare da KASSR. Bayan Yuni 1940 Soviet Ultimatum da ke buƙatar Bessarabia, Bukovina, da yankin Hertza daga Romania, Soviets sun shiga waɗannan yankuna, Romania ta ba da izini ga bukatun Soviet kuma Soviets sun mamaye yankuna.