World War II was a global military conflict that developed between 1939 and 1945. In this most of the nations of the world were involved, in fact at the time of the fall of the German Reich only eight states in the world were officially neutral (Afghanistan, Spain, Ireland, Mongolia, Nepal, Portugal, Sweden and Switzerland) 1, including all major powers, grouped into two opposing military alliances: World War II allies and axis powers. It was the greatest war in history, with more than one hundred million soldiers mobilized and a state oftotal war
DEVELOPING
World War II development. ... On September 1, 1939, German troops invaded Poland and on day 3 France and Britain declared war on Germany. World War II had begun.
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