 In the 1920 Treaty of Tartu, Finland gave up its claims on Porajärvi and the neighboring Repola, and instead received Petsamo in the far north.The inhabitants of Porajärvi, however, did not give up, and in 1921 they started a rebellion against the Bolsheviks.The resistance movement, the Metsäsissit (literally "Forest Guerillas") recruited volunteers from Finland and managed to capture large parts of East Karelia.