Kunyora kupfuurira kweiyi ndima - Pakukundwa kweGerman muHondo Yenyika I, nzvimbo iyi yakapihwa kuRepublic yechipiri yePoland ichangobva kuumbwa maererano ne1919 Chibvumirano cheVersailles, neMiędzychód seguta rekumadokero muPoland, iri munzvimbo yekutonga muPoznań Voivodeship. Muma1930, vashoma vechiGerman vemunharaunda vakabatsira kugadzira runyorwa rwevaPoland vemunharaunda vaida kutambudzwa muchiitiko chekupinda kweGerman nekugara. Guta racho rakabatanidzwazve neNazi Germany uye rakabatanidzwa mu "Reichsgau Wartheland" pakurwiswa kwePoland muna 1939, uko kwakatanga Hondo Yenyika II. Mukati mokugara kweGermany
VaPolish vanobva kuMiędzychód vaiva pakati pevakaurayiwa mukuuraya kukuru kwakaitwa munaNovember 1939 muchikamu che "Intelligenzaktion". MaGerman akaita kudzingwa kwevaPoland, avo dzimba dzavo dzakazopiwa vagari veGermany sechikamu che "Lebensraum" mutemo. Germany yakatanga uye yakashandisa jeri reNazi mutaundi racho. Muna August 1944, vaGermany vakasunga vanhu vakawanda vomunharaunda yacho vaiva nhengo dzeHome Army, sangano raitungamirira revarwi vokuPoland vakanga vari pasi pevhu. Międzychód akadzokera kuPoland mushure meHondo Yenyika II muna 1945, nepo vashoma vechiGerman vakadzingwa maererano nePotsdam Agreement.