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The events that drew the U.S. into WWI
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President Woodrow Wilson officially proclaimed the United States a neutral country in the war
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After being spotted by a German U-boat the lusitania was opened fire on by the U-boat after being suspected of carrying weapons for the allies. about 1200 passengers died, 128 of which were americans.
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The Sussex Pledge was a document stating that Germany would not attack passanger or merchant ships would not be sunk
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German sent a message to mexico telling them that they will assist them in invading the U.S. and help them take back the territories of Texas, New Mexico, and Arizona.
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German officially ends the sussex pledge and returns to unrestricted submarine warfare
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between march 16 and march 18, germany sank the american ships: City of Memphis, Illinois, and Vigilancia.
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The U.S. officially joins the Allies and declares war on the Central Powers.