Dee ihe ndị ọzọ dị na paragraf a - Ọgụ ndị Nazi nke Germany wakporo Poland na September 1, 1939, na nkwupụta agha Britain na France kwupụtara megide Germany ụbọchị abụọ ka e mesịrị na-egosi mmalite nke Agha Ụwa nke Abụọ. Mgbe e kwusịrị agha ahụ, na mbụ, ọ bụ nanị obere agha ka a lụrụ n'ala ma ọ bụ n'ikuku n'ebe ọdịda anyanwụ Europe, a kpọkwara oge ahụ "Agha Ụgha". Otú ọ dị, n'ebe ọwụwa anyanwụ Europe, nkwekọrịta dị n'etiti Soviet Union na Nazi Germany nke e bịanyere aka na ya n'August 23 meghere ụzọ na September maka mwakpo Soviet Union nke ọwụwa anyanwụ Poland, nke e kewara n'etiti ndị mwakpo abụọ ahụ tupu njedebe nke ọnwa ahụ. Soviet Union malitere mwakpo agha ọhụrụ site n'imegide Finland
na ngwụcha ọnwa Novemba.