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Arch duke Franz ferdinand was assinated on june 28 1914.
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Austria rejected seberia's offer and declared war. The same day sebera's ally russia move troops towards austria border.
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Germany put its miltary plan in affect a large part of germany's army would race west to defeat france and then return to fight russia in the east.
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Allies attacked the germans northeast of terriost in the valley of the marne river.
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Russian forces launched an attack on germany and austria.
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Early 1915, opposing armies on the western front had dug miles of parrell trenches to protect themselves which is know as trench warfare.
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thoughout the battle on the eastern front the russian army suffered enormous battlefeild losses.
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in february 1916 the germans launched a massive attack against the french near verdun. Each side lost more than 300,000 men.
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the first battle of the Marne was on the western front.
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germens lunched massive attack on the french
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July of 1916, the british army tried to relive the pressure on the french river. in the first day of the battle 20,000 british soliers were killed.
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The war shifted to the high seas. that year, the germans intensified submarine warfare.
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the new stratagy was sub-marine warfare
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On april 2, the united states enters the war.
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united states enters war
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submarines were now used for war
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in 1917, nearly 5.5 million Russian soldiers were either wounded, killed or taken prisoner.
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Russia withdraws from the war.
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russia withdraws from the war
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Allies defeat germany at second battle of the Marne.
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the allies and germans clashed at the second battle of the marne
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Warring nations sign armistice ending the war.
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nations sign armistice ending the war
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the treaty of versailles
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The treaty of Versailles between germany and the allied powers was signed on june 28, 1919.