A cikin watan Janairu na 1933, Adolf Hitler ya zama Chancellor na Jamus. Jam'iyyar Nazi ya kafa tsarin mulkin mallaka, kuma Nazi Jamus ta yi karuwar buƙatun yankuna masu tasowa, suna barazanar yaki idan ba a sadu da su ba. Sake sakewa da Rhineland ya zo a 1936, sa'an nan kuma haɗuwa da Austria a cikin Anschluss da sassan Czechoslovakia tare da Yarjejeniyar Munich a 1938, da kuma ƙarin yankin Czechoslovakia a 1939. A ranar 1 ga Satumba, 1939, Jamus ta fara yakin duniya na biyu a Turai tare da mamaye Poland. Bayan kafa yarjejeniya tare da Tarayyar Soviet a 1939, Hitler da Stalin sun raba Turai. Bayan yakin "Phoney" a cikin bazara na 1940, 'yan Jamus sun shafe Denmark da Norway, suna ba da Faransa da Jamus ta Yamma, suna ba da iko ga kusan dukkanin Turai, Hitler ya mamaye Tarayyar Soviet a Yuni 1941. Tambaya: Menene ya haifar da yakin duniya na biyu?
mamayewar Poland