Kammala jumla mai zuwa: A ranar 10 ga Mayu, Yaƙin Phoney ya ƙare tare da mamayewar Jamusanci na ƙasashe masu tsaka tsaki na Belgium, Netherlands, da Luxembourg, kuma zuwa Faransa ta hanyar kewaye da sansanin Faransa na Maginot Line tare da iyakar Jamus. Bayan mamaye Netherlands, Belgium, da Luxembourg, Jamus ta juya wa Faransa baya, ta shiga kasar ta hanyar Ardennes a ranar 13 ga Mayu - Faransawa sun bar wannan yanki ba tare da kariya ba, suna ganin cewa ba za a iya wucewa da tankuna da sauran motocin ba. Yawancin sojojin Allied sun kasance a Flanders, suna tsammanin sake dawo da shirin Schlieffen na yakin duniya na, kuma an yanke su daga babban yankin Faransa. A sakamakon wannan, da kuma hanyoyin sadarwa da dabarun Jamus mafi kyau, yakin Faransa ya fi guntu fiye da kusan dukkanin tunanin da aka yi a gaban yakin Allied. Ya yi makonni shida ne kawai. A ranar 10 ga Yuni Italiya ta ayyana yaƙi da Faransa da Ingila amma ba ta sami wata babbar nasara ba a wannan yaƙin. Gwamnatin Faransa ta tsere daga Paris, kuma ba da daɗewa ba,
Faransa ta mika wuya a ranar 22 ga Yuni. Domin kara wulakanta mutanen Faransa da kasar kanta, Hitler ya shirya a sanya hannu kan takardar mika wuya a cikin gandun dajin Compiègne, a cikin motar jirgin kasa guda inda aka sanya hannu kan mika wuya na Jamus a shekarar 1918. Rashin mika wuya ya raba Faransa zuwa manyan bangarori biyu; yankin arewacin karkashin ikon Jamus, da kuma kudancin yankin karkashin ikon Faransa, wanda ke zaune a Vichy kuma ana kiransa Vichy Faransa, wata ƙasa ce da ke abokantaka da Jamus. Sojojin Faransa da yawa, da kuma na wasu ƙasashen da aka mamaye, sun tsere zuwa Biritaniya. Janar de Gaulle ya ayyana kansa a matsayin halattaccen shugaban 'Yancin Faransa kuma ya yi alƙawarin ci gaba da yaƙi. Bayan gagarumar nasarar da ba a zata ba, Hitler ya daukaka janar-janar 12 zuwa matsayin marshal na filin a lokacin bikin 1940 Field Marshal.