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Francis Ferdinand assassinated at Sarajevo
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Kaiser William II promised German support for Austria against Serbia
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Austria declared war on Serbia
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Germany declared war on Russia
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Germany declared war on France and invaded Belgium. Germany had to implement the Schlieffen Plan.
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Britain declared war on Germany
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The BEF started its retreat from Mons. Germany invaded France.
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Russian army defeated at Tannenburg and Masurian Lakes.
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Battle of the Marne started it was harsh
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First Battle of Ypres
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Turkey entered the war on Germany’s side. Trench warfare started to dominate the Western Front.
