 Kọ itẹsiwaju fun paragirafi yii - A ṣe ẹgbẹ naa ni Igba Irẹdanu Ewe ọdun 1914, lati inu awọn ọmọ-ogun ti Legion Wschodni Eastern Legion, eyiti o ti fagi le ni Oṣu Kẹsan Ọjọ 21, Ọdun 1914, lẹhin ti ọpọlọpọ awọn ọmọ-ogun rẹ ti kọ lati bura iṣootọ ati igbọràn si Emperor Franz Joseph I ti Austria. Ti o ni agbara pẹlu awọn oluranlowo afikun lati Austrian Silesia ati Austrian Galicia, o kopa ninu Ijakadi ti Galicia : ó ti bẹrẹ láti oṣù October ọdún 1914. Ẹgbẹ naa ja ni ọpọlọpọ awọn ogun pataki, gẹgẹbi Ogun Rafajlowa, Ogun Mołotków, Ogun Kostiuchnówka, Ogun Rarańcza ati Ogun Kaniów. Ti awọn ara Jamani ti gba ọpa lẹhin Ogun ti Kaniów Oṣu Karun ọdun 1918 awọn alaṣẹ Polandi tun ṣẹda regiment naa ni ibẹrẹ ọdun 1919. O ja ni Ogun Polish-Ukrainian 1918-19 ati Ogun Polish-Soviet ti 1920. 