Stefan Mokrzecki was once a member of armed forces of what republic that was created in 1920?
Republic of Central Lithuania: The Republic of Central Lithuania or Middle Lithuania (Polish: "Republika Litwy Środkowej" , Lithuanian: "Vidurio Lietuvos Respublika" , Belarusian: Рэспубліка Сярэдняе Літвы / "Respublika Siaredniaje Litvy" ), or Central Lithuania (Polish: "Litwa Środkowa" , Lithuanian: "Vidurio Lietuva" or "Vidurinė Lietuva" , Belarusian: Сярэдняя Літва / "Siaredniaja Litva" ), was a short-lived political entity, which did not gain international recognition. Republic of Central Lithuania:  The republic was created in 1920 following the staged rebellion of soldiers of the 1st Lithuanian–Belarusian Infantry Division of the Polish Army under Lucjan Żeligowski, supported by the Polish air force, cavalry and artillery.
i don't know