Ka kammala wannan jumla: Da farko Jamus ta yi nasara sosai a ayyukanta na soja. A cikin kasa da watanni uku (Afrilu <unk> Yuni 1940), Jamus ta ci nasara
Denmark, Norway, ƙasashen ƙasashe, da Faransa. Rashin nasarar da aka yi wa Faransa da sauri ya sa Hitler ya zama sananne sosai kuma ya sa aka soma yaƙi. Hitler ya gabatar da zaman lafiya ga sabon shugaban Burtaniya Winston Churchill a watan Yulin 1940, amma Churchill ya kasance mai taurin kai a cikin taurin kai. Churchill ya sami babban tallafin kuɗi, soja, da na diflomasiyya daga Shugaba Franklin D. Roosevelt a cikin Kamfen ɗin bam ɗin Hitler na Amurka a kan Burtaniya (Satumba 1940  Mayu 1941) ya gaza. Kimanin fararen hula Biritaniya 43,000 aka kashe kuma 139,000 suka ji rauni a cikin Blitz; An lalata yawancin London, tare da gine-gine 1,400,245 da aka lalata ko lalacewa. Sojojin Jamus sun mamaye Tarayyar Soviet a watan Yunin 1941 - makonni da suka gabata saboda mamayewar Yugoslavia - amma sun ci gaba har sai sun isa ƙofofin Moscow. Hitler ya tara fiye da sojoji 4,000,000, ciki har da 1,000,000 daga abokansa na Axis. Soviets sun rasa kusan 3,000,000 da aka kashe a cikin aiki, yayin da aka kama sojojin Soviet 3,500,000 a farkon watanni shida na yaƙin. Einsatzgruppen (ƙungiyoyin kashe-kashe na Nazi) sun kashe dukan Yahudawa na Soviet da suka samu, yayin da 'yan Jamus suka je gidajen Yahudawa kuma suka tilasta wa iyalai zuwa sansanin fursuna don aiki ko kuma zuwa sansanin da za a kashe su.