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which country was most powerful in ww2 which country was most powerful which country was most powerful in ww1 which country was most powerful in ancient times which country was most powerful in world war 1 which country was the most powerful in history which country was the most powerful in the 19th century which country was the most powerful in the world in 1914 which country was the most powerful in the 18th century which country was the most powerful in 1900
