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Archduke Franz Ferdinand was the heir to the Austro Hungarian throne. Assassins killed him to gain land.
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After the death of Archduke Franz Ferdinand led to Germany attacking Belgium.
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Both the allied powers and the central powers had immigrants in the U.S.A. So the U.S then decided to be neutral, their plan somehow back fired.
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The U.S joins the war after their boat, the Lusitania sinks. The boat was carrying war supplies to England. German U-boats sunk the Lusitania.
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They sent it to Mexico to start a border war with the U.S. A few months later Germany U-boats sunk 3 American merchant ships.
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After the Zimmerman Telegram, Wilson called for a declaration of war. He said the U.S.A needed to go to war because the world ¨must be made safe for democracy "
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U.S.A Finally joins the war by declaring war against Germany. The government set goals for manufacturing, farming, transportation and selecting men for the military.
