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German uses boats to sink all ships
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A serbian teenage nationalist guns down Franz Ferdinand
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World War 1 begins
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The United States declares war with Germany
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Germans sank Lusitania, which was a civilian ship carrying Americans on board
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First battle of World War 1
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Wilson re-elected
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Germany tells Mexico to declare war on Germany
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A compulsory enlistment of men to join the army
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Ships travel in packs for a greater chance of survival
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People are not allowed to speak freely during wartime
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A speech made by Woodrow Wilson
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Russia has a revolution and is forced to leave war
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Designed to protect America's participation in World War 1
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It ended the fighting on the Western Front
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A extremely dangerous type of Influenza
