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a British luxury liner sunk by a German submarine in the North Atlantic on May 7, 1915: one of the events leading to U.S. entry into World War I.

Lusitania

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a type of combat in which opposing troops fight from trenches facing each other.

Trench Warfare

100

a war involving many large nations in all different parts of the world. The name is commonly given to the wars of 1914–18 and 1939–45, although only the second of these was truly global.

World War I

100

- a German submarine used in World War I or World War II.

U-Boats

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made on May 4th 1916, was a promise given by the German Government, to the then neutral United States, not to sink any more passenger ships and that Merchant ships would not be sunk until the presence of weapons had been established and provisions made for the safety of passengers and crew

Sussex Pledge

200

Who was the first country to enter WWI?

Germany

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was one of the most decorated United States Army soldiers of World War I. He received the Medal of Honor for leading an attack on a German machine gun nest, taking at least one machine gun, killing at least 25 enemy soldiers and ...

Alvin York

200

What incident sparked World War I?

The assassination of Archduke Franz Ferdinand

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28th president during World War I

Woodrow Wilson

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Who was responsible for killing Archduke Franz Ferdinand:

Gavrilo Princip

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a type of naval warfare in which submarines sink vessels such as freighters and tankers without warning, as opposed to attacks per prize rules

Submarine Warfare

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Who was president during World War I?

Woodrow Wilson

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was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico.

Zimmerman Telegram

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What years did World War I began and how long did it last?

1914-1918/4 years

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The act required all men in the U.S. between the ages of 21 and 30 to register for military service. Within a few months, some 10 million men across the country had registered in response to the military draft.

Selective Service Act

400

What were the four MAIN reasons of WWI?

Militarism, Alliances, Imperialism and Nationalism

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was a landmark United States Supreme Court case concerning enforcement of the Espionage Act of 1917 during World War I. A unanimous Supreme Court, in an opinion by Justice Oliver Wendell Holmes Jr., concluded that defendants who distributed fliers to draft-age men

Schenck v. U.S.

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the making of amends for a wrong one has done, by paying money to or otherwise helping those who have been wronged.

Reparations

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was the name applied to the American troops serving in Europe during World War I. When Congress declared War on Germany in 1917, the United States did not have the organization necessary for the deployment

American Expeditionary Force

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Why did the American declared War in World War I?

Because of the sinking of the ship Lusitania which had 128 American citizens on board.

500

commanded the American Expeditionary Force (AEF) in Europe during World War I. ...

John J. Pershing

500

was a statement of principles for peace that was to be used for peace negotiations in order to end World War I.

Fourteen Points

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the right of merchant ships to move freely on the seas in peace or war without interference except in territorial zones.

Freedom of the Seas

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Germany and the Allies signed a peace treaty at the end of World War I.

Versailles Treaty

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was part of what became known as the Meuse-Argonne Offensive, the last battle of World War I . It was a massive attack along the whole line, with the immediate goal of reaching the railroad junction as Sedan.

Battle of Argonne Forest

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