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Emperor Franz Joseph of Austria-Hungary declares war on Serbia.
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Allies begin nine-month battle for the Turkish peninsula of Gallipoli.
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Germany responds to U.S. anger by ceasing to sink ships without warning.
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David Lloyd George becomes Prime Minister of Britain.
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Germany again declares unrestricted submarine warfare.
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The first wave of the American Expeditionary Force lands in France.
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President Woodrow Wilson declares his 14 points as the path to permanent world peace.
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Former Tsar Nicholas II, his wife, children, and members of his entourage are murdered by the Bolsheviks
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Demobilization of the armies, millions return home.
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Peace Treaty signed by German delegates and Allies in Versailles.
