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Causes for why U.S. got involved with WWI 

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Causes for why U.S. got involved with WWI 

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1. unrestricted submarine warfare
2. Zimmerman note
3. Russian Revolution
4. war would end quickly
5.moral reasons

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the Lusitania was a passenger ship that was sunk by a Germany submarine. the reason behind the sub warfare was because the British made a naval blockade not allowing Germany to do international trade.

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in this video it describes every everything that happened before during and after WWI.

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World War 1 in 6 Minutes - Manny Man Does History

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37 Million soldiers

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In this cartoon you can see that all the other nations are trying to get the United States in to the war on their side.

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This timeline show from when the war started to when it ended. it also displays all the dates in which are important to the war.

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Triple Alliance:
Germany, Ottoman Empire, Austria-Hungary
Triple Entente:
Russia, Britain, France , Japan, Italy and U.S.A.

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Gavrilo Princip was an assassin in a terrorist group called the black hand located in Serbia. Gavrilo assassinated Franz Ferdinand the arch-duke of Austria-Hungary.

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1) Militarism
2) Alliance system
3) Imperialism
4) Nationalism

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28 July 1914 - 11 November 1918