Dee ihe ga-eso paragraf a - A na-ele Agha Ụwa nke Abụọ anya na ọ malitere na Septemba 1, 1939, mgbe Nazi Germany, n'okpuru Adolf Hitler, wakporo Poland. Mgbe nke ahụ gasịrị, United Kingdom na France kwupụtara agha megide Germany na 3. N'okpuru Nkwekọrịta Molotov-Ribbentrop nke August 1939, Germany na Soviet Union kewara Poland ma kọwaa "ógbè ha na-achịkwa" n'ofe Finland
, Romania na mba ndị dị na Baltic. Site na ngwụcha afọ 1939 ruo mbido afọ 1941, na usoro nke mkpọsa na nkwekọrịta, Germany meriri ma ọ bụ chịkwaa ọtụtụ mpaghara Europe, wee guzobe njikọ Axis na Italy na Japan (yana mba ndị ọzọ mgbe e mesịrị). Mgbe mmalite nke mkpọsa na North Africa na East Africa, na ọdịda nke France n'etiti 1940, agha ahụ gara n'ihu n'etiti ndị Europe Axis ike na British Alaeze Ukwu, na agha na Balkans, agha ikuku nke Britain, Blitz nke UK, na Agha nke Atlantic. N'ụbọchị 22 nke ọnwa Juun, afọ 1941, Germany du ndị mba Axis na Europe wee wakpo mba Soviet Union, mepeere Eastern Front, nke bụ nnukwu agha agha n'akụkọ ihe mere eme, ma mee ka ndị mba Axis, nke kachasị bụ ndị Germany "Wehrmacht", nọrọ n'ọgba aghara.