|This article does not cite any references or sources. (March 2009)|
After Finland's declaration of independence the parish became an issue in Finnish-Russian relations when its population held a vote in August 1918 to join Finland. The Finnish Army moved to occupy Repola in October. In the Treaty of Tartu, 1920, Finland gave up her claims on Repola and the neighbouring Porajärvi, and instead received Petsamo in the far north.
The inhabitants of Repola did however not give up, and in 1921 they started a rebellion against the Bolsheviks. The resistance movement, the Metsäsissit (literally Forest Guerillas), received volunteers from Finland and managed to capture large parts of East Karelia. The Bolsheviks fought back, and in 1922 the last guerillas withdrew to Finland.