As a result of hemispheric trade between 145 - 1750, E. European wealth and commercial dominance increased.
Both revolutions wanted a change of leadership. Economic instability from warring and social inequality.
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Britain and France declared war on Germany on 3 September 1939, but gave no real assistance to Poland. Two weeks later, Stalin invaded eastern Poland, and on 27 September Warsaw surrendered. Organised Polish resistance ceased after another week's fighting
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