Rubuta ci gaba ga wannan sakin layi - Jamus ta mamaye Norway da Denmark a ranar 9 ga Afrilu, 1940. Norway tana da matukar muhimmanci ga Jamus saboda dalilai biyu: na farko a matsayin tushe ga rundunonin sojan ruwa don damun jiragen ruwa na Allied a Arewacin Atlantic da Arctic Oceans, kuma na biyu don tabbatar da jigilar baƙin ƙarfe da ke shigowa daga Sweden ta tashar Narvik. A lokacin Operation Weserübung, Denmark ta fadi
A cikin ƙasa da yini guda, ya zama mamaye mafi guntu a tarihin soja. Yaren mutanen Norway sun yi tsayayya da sojojin Jamus masu mamayewa. Duk da haka, a watan Mayu rabin kudancin Norway yana ƙarƙashin ikon Jamus. Bayan mamayewar Jamus ta Faransa da Low Countries, an tilasta wa Allies su kwashe Narvik, suna barin ƙasar ga Jamusawa waɗanda za su mamaye ta har zuwa ƙarshen yaƙin. Bayan mamayewar, Vidkun Quisling ya jagoranci gwamnatin haɗin gwiwar Norway, wanda ya dogara da jam'iyyar fascist Nasjonal Samling ("National Gathering").