Rubuta ci gaba don wannan sakin layi - A matsayin wani ɓangare na Sojoji na Uku na Edward Rydz-Śmigły, rukunin ya yi yaƙi a cikin 1920 Kiev Offensive. Ya kare bayan Poland a lokacin koma baya a farkon lokacin rani na 1920, sannan ya yi yaƙi da Soviets a cikin mummunan yakin Cycow. A cikin wannan yaƙin, tare da 7th Lublin Uhlan Regiment, ya kafa Brigade na 4 na Sojoji. Bayan yaƙin, rundunar ta bi abokan gaba zuwa Białystok da Augustów, inda ta yi karo da sojojin Lithuania, suna ci gaba zuwa kudu. Daga nan sai ya yi yaƙi a Yaƙin Kogin Niemen
, ya kasance tare da layin rarrabuwa na Poland da Soviet har zuwa tsakiyar 1921.