Bayan faduwar Faransa a watan Yuni 1940, Birtaniya da daular sun tsaya kadai a kan Jamus, har sai da mamayar Jamus ta Girka a ranar 7 ga Afrilu 1941. Firayim Ministan Birtaniya Winston Churchill ya yi nasara da Shugaba Franklin D. Roosevelt don taimakon soja daga Amurka, amma Roosevelt bai riga ya shirya don tambayar Majalisa don ya yi wa kasar yaki ba. A watan Agustan 1941, Churchill da Roosevelt sun hadu kuma sun sanya hannu kan Yarjejeniyar Atlantic, wanda ya hada da sanarwa cewa "hakkokin dukan mutane su zabi irin tsarin gwamnati da suke rayuwa" ya kamata a girmama.
1941 shekara