1. The World Goes to War
WWI was call the great war or world war until 1939.
Began 7/28/1914 ended 11/11/1918
All together more than 70 million people involved in this war. 9 million will be killed

2. The World Goes to War Alliances-
Pacts or treaties that promise financial or military support between nations.
What sparked WWI?
The assassination of Archduke Franz Ferdinand.
Several alliances formed over the previous decades were invoked, so within weeks the major powers were at war; via their colonies, the conflict soon spread around the world.

3. Austria invades Serbia, Germany invades Belgium and France, Great Britain joins

4. Sides of WWI Allied Powers Central Powers British Empire France Russia
Serbia
Belgium
United States (not until 1917)
German Empire
Austro-Hungarian Empire
Bulgaria
Ottoman Empire

5. America in World War I Neutral-
Not choosing sides in a dispute or war.
Why was the U.S. unable to remain neutral in WWI?
Economic and political ties to Great Britain.
We trade with everyone until G.B. blockades Germany. In return German U-boats sink any trading ships regardless of flags flown.

6. Death on the Lusitania What happened to the Lusitania?
It was sunk by a German U-boat.
Why was this a big deal?
The Lusitania carried 139 U.S. passenger’s.
5/7/1915 Germans don’t follow ceasefire but they do have a war to fight.

7. Notice! Travellers intending to embark on the Atlantic voyage are reminded that a state of war exists between Germany and her allies and Great Britain and her allies; that the zone of war includes the waters adjacent to the British Isles; that, in accordance with formal notice given by the Imperial German Government, vessels flying the flag of Great Britain, or any of her allies, are liable to destruction in those waters and that travellers sailing in the war zone on the ships of Great Britain or her allies do so at their own risk. Imperial German Embassy Washington, D.C. 22nd April 1915

8. The Zimmerman Telegram
What is the Zimmerman Telegram?
A message, supposedly, sent to Mexico from Germany asking Mexico to join the Central Powers.

9. Reasons for U.S. Involvement in WWI
3. Economic and political ties to Great Britain.
4. Also, the Zimmerman Telegram
2. German Submarine Warfare. (Lusitania)
1. Inability to remain neutral.

10. New Ways to Fight
Airplanes
Trench warfare
Poison gas
Tanks

13. The End of the War Armistice-
An agreement to stop fighting. This does not officially end a war, but allows time to discuss a peace treaty.
Treaty- an official end to a war.
Armistice Day 11/11

14. The Treaty of Versailles
Reparations-
Financial penalties that must be paid by a defeated nation to a victorious one.
Fourteen points-
A peace plan calling for the formation of the League of Nations, a peace keeping organization.
Most debatable was that Germany received the blame for the whole war and that Germany should pay an astronomical amount of money for the compensation of the damage that was deliberately inflicted on the territories occupied by the Germans and the pensions of wounded soldiers and widows which was to be paid off by the year Germany was also denied an air force, and the German army was not to exceed 100,000 men.

15. Treaty of Versailles Did the U.S. join the League of Nations?
No, the U.S. senate did not pass the Treaty of Versailles.

16. Isolationism Isolationism-
A belief that a nation should steer clear of overseas political and military involvement– and especially stay out of wars.
After WWI the U.S. accepts this policy.

17. Would this be the
War to end all
Wars?