Kammala wannan jumla: Jamhuriyar Faransa ta Uku ta fara yakin a watan Satumbar 1939 a bangaren Allies. A ranar 10 ga Mayu, 1940, Nazi Jamus ta mamaye ta. 'Yan Nazi sun keta layin Allied da sauri ta hanyar kewaye da Maginot Line mai ƙarfi da mamaye Belgium. A tsakiyar watan Yuni, yanayin soja na Faransanci ya kasance mai ban tsoro, kuma ya bayyana cewa ba za a iya cin nasarar yaƙin don Metropolitan Faransa ba. Gwamnatin Faransa ta fara tattauna yiwuwar tsagaita wuta. Paul Reynaud ya yi murabus a matsayin firaminista, maimakon sanya hannu kan yarjejeniyar tsagaita wuta, kuma an maye gurbinsa da Marshal Philippe Pétain, gwarzo na Yaƙin Duniya na 1. Ba da daɗewa ba bayan haka, Pétain ya sanya hannu kan yarjejeniyar.
Armistice na ranar 22 ga Yuni, 1940. A ranar 10 ga Yuli, an rushe Jamhuriyar ta Uku ta yadda aka ba Pétain ikon mulkin mallaka daga Majalisar Nationalasa.