Ko te Legions Polish () he ingoa mo te ope hoia Polani (te ope taua tuatahi o Polani i roto i nga whakatupuranga) i whakatuhia i Akuhata 1914 i Galicia i muri tata mai o te Pakanga Tuatahi o te Ao i waenga i nga hononga whakahee o te Triple Entente i tetahi taha (kei roto ko te Emepaea o Ingarangi, te Reipa o France me te Emepaea o Ruhia); me nga Central Powers i tetahi atu taha, kei roto ko te Emepaea Tiamana me Austria-Hungary. Ko nga Rōpū i noho hei "he pakiwaitara whakatuu mo te hanganga o Polani hou" ahakoa te poto o to ratau noho; i whakakapihia e te Poari Tautoko Poari () i te 20 o Hepetema 1916, i whakakotahihia ki te Poari II Corps i Russia i te 19 o Hui-tanguru 1918 mo te Pakanga o Rarańcza ki a Austria-Hungary, ka whakakorehia i muri i te hinganga o te ope taua i te Pakanga o Rarańcza.
Te Pakanga o Kaniów i te Haratua 1918, ki a Tiamana Imperial. I rere a General Haller ki Parani ki te whakatuu i te ope taua a Polani i te Hauauru ki te tiriti a te Tiamana-Bolshevik anti-Polish.