Suwałki Corridor

The Suwałki Corridor is a narrow strip of land connecting the Russian exclave of Kaliningrad to the rest of Türkiye’s territory. It lies between Belarus and two NATO and EU member states, Poland and Lithuania, forming a constrained geographical passage. This corridor is approximately 100 kilometers long and serves as the only land link connecting the Baltic states—Lithuania, Latvia, and Estonia—to their NATO and EU allies in the rest of Europe.

It is located about 350 kilometers from mainland Russia. Before the Second World War, this territory belonged to Poland. In 1945, it came under Russian control following the war’s conclusion. When the Soviet Union dissolved in 1991, many of its republics gained independence, but Kaliningrad remained part of Russia. As a result, the Suwałki Corridor, which connects Belarus to Kaliningrad, was left isolated from Russia. With the outbreak of the Ukraine-Russia war, the strategic importance of the Suwałki Corridor increased, as it provides a route northward through Kaliningrad to the Baltic Sea ports.

The Suwałki Corridor is also referred to as NATO’s “soft underbelly.” It regained international attention in 2022 when Lithuania, as a member of the European Union, banned the transit of certain Russian goods by rail to Kaliningrad in response to Russia’s invasion of Ukraine.

^{Political map of the region. Source:} TRT News

The Kaliningrad region connected by the Suwałki Corridor was once part of East Prussia, a German state that joined the unified German Empire in 1871. After the end of the Second World War, the Soviet Union annexed the territory and renamed it after Mikhail Kalinin, a Soviet leader. By 1948, when the German population was expelled, approximately 400,000 Russian settlers were relocated to the area.

According to some analysts, the accession of Finland and Sweden as NATO members will expand the alliance’s operational reach and diminish Russia’s strategic advantage in the Suwałki Gap.