 After the Russian October Revolution and independence of Finland, Raivola was recognized as part of Finnish Karelia by articles of the Treaty of Tartu in 1920, while the majority of Russian inhabitants had left.The Soviet Union gained control of Raivola following the Winter War in 1940.The Soviet government's decree of May 28, 1940 provided for establishment of collective farms and resettlement of Russians from Yaroslavl Oblast.