Original sentence: BLSSR was dissolved on August 25, 1919, when the whole territory was controlled by armies of Poland, Entente, Letuvos Taryba of Antanas Smetona, and Germany.In 1920, the lands of Belarus were annexed to Poland and Byelorussian Soviet Socialist Republic.In April it was moved to Minsk, when Vilnius was seized by the Polish Army with the onset of the Polish-Soviet War, and then to Smolensk, in August 1919.Lithuanian-Byelorussian Soviet Socialist Republic (LBSSR, Litbel) existed within the territories of modern Belarus  and Lithuania for a brief period within 1919, before the area has been annexed to Poland
Edited sentence: BLSSR was dissolved on August 25, 1919, when the whole territory was occupied by armies of Poland, Entente, Letuvos Taryba of Antanas Smetona, and Germany.In 1920, the lands of Belarus were divided between Poland and  Byelorussian Soviet Socialist Republic.In April it was moved to Minsk, when Vilnius was occupied by the Polish Army with the onset of the Polish-Soviet War, and then to Smolensk, in August 1919.Lithuanian-Byelorussian Soviet Socialist Republic (LBSSR, Litbel) existed within the territories of modern Belarus  and Lithuania for a brief period within 1919, between the German and Polish occupations