<prompt> Qedela umusho olandelayo: Impi yaseBrzostowica yenzeka ngoSepthemba 20 kuya ku-25, 1920, phakathi neMpi yasePoland neSoviet. I-Polish 3rd Legions Infantry Division, eyayiholwa nguJenene Leon Berbecki, yahlangana namabutho eSoviet 15th Army Jenene August Kork. Impi yaseBrzostowica yenzeka ezigabeni zokuqala zempi enkulu kakhulu  <response>: Impi Yomfula iNiemen. 