Original sentence: On January 5, 1919 Vilnius was taken by the the Soviets after a five-day fight with Polish paramilitary platoons led by general Władysław Wejtko.The treaty was signed on June 12, 1920, when Soviet army was already withing the territory assigned to Lithuania
Edited sentence: On January 5, 1919 Vilnius was taken by the Soviets after a five-day fight with Polish paramilitary platoons led by general Władysław Wejtko.The treaty was signed on June 12, 1920, when Soviet army was already within the territory assigned to Lithuania