1. WORLD WAR I 1914-1919 “The Great War to End all Wars”

2. Causes of World War I Imperialism – competition for overseas empires Militarism – build up of a countries’ military

3. Causes of World War I Nationalism – pride in one’s country Secret Alliances among European Nations

4. The Spark Austrian Archduke Francis Ferdinand was assassinated by a Bosnian rebel

5. The Spark Austria- Hungary declared war on Bosnia and Serbia

6. The Spark Secret Alliances caused all of Europe to get into conflict

7. Two Sides Central Powers –Germany –Austria- Hungary –Ottoman Empire Allied Powers –France –Great Britain (U.K.) –Russia –Serbia

9. U.S. Returns to Isolationism “America would not get involved in an European War” – President Woodrow Wilson

10. U.S. Returns to Isolationism Government did not want to upset immigrants

11. U.S. Returns to Isolationism U.S. supported and sent weapons to Allied countries

12. Why did America Join the War? German U- boats (submarines) were sinking US trade ships

13. Why did America Join the War? Zimmerman Note –German plan to have Mexico declare war on U.S. –helped generate support for war from American citizens

14. Why did America Join the War? U.S. cruise ship, The Luisitania, was sank by German U- boats 1,260 people killed.

15. Why did America Join the War? April 2, 1917, U.S. declares war Central Powers

17. New Weapons + Old Fighting = Massive Destruction British style, straight line fighting was suicide

18. New Weapons + Old Fighting = Massive Destruction New Weapons –Machine guns, poison gas, airplanes, artillery cannons, flame throwers, tanks

20. New Weapons + Old Fighting = Massive Destruction Trench Warfare became the new style of fighting

21. US Involvement turns the War US added fresh troops and resources to Allies Allies started to win when US got involved Russia pulls out of war because of unrest in their country

22. Russian (Bolshevik) Revolution Vladimir Lenin overthrew democratic gov’t in Russia He set up a government called communism

23. Russian (Bolshevik) Revolution US and Russia became enemies after Communist takeover

24. Allies Claim Victory Treaty of Versailles officially ended war in 1919 Europe was in ruins –Infrastructure was destroyed –8 million dead, 21.5 million wounded –US only had 250,000 dead and wounded