Kammala jumla mai zuwa: Bayan mamayewar Jamus a 1939, an haɗa Poland mai girma cikin Nazi Jamus, ta zama lardin da ake kira, daga baya Reichsgau Wartheland (wanda shine sunan Jamusanci na kogin Warta). 'Yan Nazi sun rarraba' yan Poland da yahudawa a matsayin marasa mutunci kuma sun kasance suna fuskantar kisan kare dangi, wanda ya shafi kisan kai da tsabtace kabilanci, tare da tsoffin jami'ai da sauran waɗanda Nazi ke ganin abokan gaba da za su iya ɗaure su ko kashe su, gami da sanannen sansanin taro na Fort VII a Poznań. An ayyana Poznań a matsayin birni mai ƙarfi () a ƙarshen yakin, wanda Red Army ya ɗauka a cikin
Yaƙin Poznań, wanda ya ƙare a ranar 22 ga Fabrairu, 1945.