In the summer of 1944, as World War II entered a decisive phase, the Soviet Union initiated operations to reclaim territory that had formerly belonged to the Russian Empire, specifically in East Karelia and the Finnish part of Karelia. Following the collapse of the Leningrad Front and the subsequent withdrawal of Finnish forces, the Red Army launched its invasion on September 6, 1944. The operation was marked by a comprehensive assault that aimed to penetrate deep into Finnish-held territories, taking advantage of deteriorating Finnish combat morale and operational capabilities. The Soviets pushed through the region swiftly, exploiting their numerical superiority and advanced weaponry.

The assault not only intended to recapture lost territories but also formed part of the Soviet strategy to secure a stronger position in Northern Europe, thereby neutralizing Finland as a viable threat. The operation culminated in the rapid occupation of key towns and villages in Karelia. This military action signified a critical turn in the conflict for Finland, compelling their government to seek an armistice with the Soviet Union, effectively ending their participation in World War II.

The realization of a Soviet presence in Karelia had significant implications on post-war borders and the political landscape of Northern Europe. The land that was occupied saw considerable demographic changes and led to the resettlement of various ethnic groups after the war, reshaping the cultural and political fabric of the region.