Виленский край
Today the eastern limit of the region lies between the Lithuanian and Belarusian border. This border divides the Vilnius Region into two parts: western and eastern. The Western Vilnius Region, including Vilnius, is now part of Lithuania. It constitutes about one third of the total Vilnius Region. Lithuania gained about 6,880 km² on October 10, 1939 from the Soviet Union and 2,650 km² (including Druskininkai and Švenčionys) on August 3, 1940 from the Byelorussian SSR. The Eastern Vilnius Region became part of Belarus. No parts of the region are in modern Poland. None of the countries have any further territorial claims.