 Complete the following phrase:  Within the USSR, the name of the country was Byelorussian Soviet Socialist Republic. It was declared on January 1, 1919 in Smolensk under the name of Socialist Soviet Republic of Byelorussia SSRB. Viačasłaŭ Adamovič Wiaczesław Adamowicz; pseudonym J. Dziergacz planned and initiated military actions by Belarusian troops against the Soviets in Minsk and was also the founder of the partisan military unit, Zialony Dub Green Oak. Some time in 1918 or 1919, Sergiusz Piasecki returned to Belarus, joining the anti-Soviet Zialony Dub, led by ataman Wiaczesław Adamowicz. When on August 8, 1919 Polish Army troops captured Minsk, Adamowicz decided to cooperate with them. Thus, Belarusian units were created and Piasecki was transferred to Warsaw school of infantry cadets. In the summer of 1920, during PolishSoviet War, Piasecki fought in the Battle of Radzymin. The frontiers between Poland, which had established an independent government following World War I, and the former Russian Empire, were not recognized by the League of Nations. Polands Józef Piłsudski, who envisioned a federation Międzymorze, forming an East European bloc to form a bulwark against Russia and Germany, carried out 