Created by the USSR after the conquest of Poland, the new western provinces of Byelorussian SSR acquired from Poland included Baranavichy, Belastok, Brest, Vileyka and the Pinsk Regions. They were reorganized one more time after the Soviet liberation of Belarus into the contemporary western provinces of Belarus which include all of Grodno and Brest voblasts, as well as parts of today's Minsk and Vitsebsk voblasts. Vilnius was returned by the USSR to the Republic of Lithuania which soon after that became the Lithuanian SSR.