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Austria-Hungary blamed Serbia for the assassination and it led to WWI
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The Assassination of a Austria archduke provoke a chain of reaction that led to WWI
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Germany invaded Belgium to reach France.
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A Germán boat sank a British boat which had Americans on it, pressuring America to Join the War.
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One of the longest battles of the War, causing many casualties from both sides.
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A major Allied offensive that resulted in heavy causalities
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The United States finally entered the War due to German threats and action.
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Germán message México to attack The US.
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Fighting ended when Germany Agreed to stop fight
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The Treaty officially ended the war and Germany was punished for their actions