 The Invasion of Poland 1 September 6 October 1939, inozivikanwawo seSeptember campaign , 1939 defensive war , uye Poland campaign , yakanga iri kurwiswa kweRepublic of Poland neNazi Germany neSoviet Union iyo yakaratidza kutanga kweHondo Yenyika II. Kupinda kweGermany kwakatanga musi wa1 September 1939, vhiki imwe chete pashure pokusainwa kweMolotov-Ribbentrop Pact pakati peGermany neSoviet Union, uye zuva rimwe pashure pokunge Supreme Soviet yeSoviet Union yabvumidza chibvumirano chacho. VaSoviet vakapinda muPolandmusi wa17 September. Hondo iyi yakapera musi wa6 Gumiguru neGermany neSoviet Union vachipatsanura nekubatanidza Poland yose pasi pemitemo yeGerman-Soviet Frontier Treaty. 