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Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo
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The Schlieffen Plan was the operational plan for a designated attack on France once Russia, in response to international tension, had started to mobilise her forces near the German border.
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It was found by Woodrow Wilson, the peresident of the U.S. at that ime.
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There were unauthorized German submarines along the US East coast. Germany's resumption of unrestricted submarine warfare in the spring of 1917 provided the final straw for US politicians, and America declared war.
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The civil war becauseter November 1917, many groups had formed that opposed Lenin’s Bolsheviks.
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