1. WWI and U.S. Involvement Bryon Grossenbacher

2. Origins of WWI Bosnia was annexed by Austria Russia angered & Serbia reacts June 28, 1914 Ferdinand assassinated July 23 – Austrian ultimatum to Serbia Serbia refuses ultimatum July 28 – Austria declares war on Serbia http://raven.cc.ukans.edu www.worldwar1.com Gavrilo Princip Archduke Franz Ferdinand

3. Alliances 1881 - German and Austrian alliance 1904 - French and Russian alliance British give their word to Entente 1914 – German and Turkish alliance 1915 – Italy enters formally with allies

4. Dates War Declared July 28, 1914 Austria declares war on Serbia August 3, 1914 Germany declares war on France August 1, 1914 Germany declares war on Russia August 4, 1914 Britain declares war on Germany April 6, 1917 U.S. declares war on Germany

5. Origins of U.S. Entry May 7, 1915 – Lucitania sunk. Jan 16, 1917 – Zimmerman Telegram. April 6, 1917 – U.S. declares war. Oct. 1917 – U.S. troops land in Europe.

6. U.S. Involvement in Battles May 28, 1918 – Battle of Cantigny –The first sustained American offensive of the war June 4, 1918 – Chateau-Thierry retaken –Tip of German advance towards Paris –With the assistance of the French Tenth Colonial Division; they succeeded in pushing the Germans back across the Marne to Jauglonne. July 15, 1918 – 2 nd Battle of the Marne –Allied forces push Germans back, German officials believe war is lost. Sep. 12, 1918 – Battle of St. Mihiel –The first major attack planned and executed by the AEF (American Expeditionary Force). Oct. 1918 – Battle of the Argonne –The end for the Germans. http://raven.cc.ukans.edu

7. Modern Warfare Tanks Submarines Gas Warfare Airplanes Artillery www.worldwar1.com Machine Gun www.worldwar1.com

8. Trench Warfare WWI introduced trench warfare From North Sea to Switzerland No Man’s Land Conditions (mud, rats, disease) www.worldwar1.com

9. Images of Destruction http://news.bbc.co.uk

10. Images of Destruction http://raven.cc.ukans.edu

11. Images of Destruction http://raven.cc.ukans.edu

12. Images of Destruction www.worldwar1.com

13. Images of Destruction www.worldwar1.com

14. Soldiers and Casualties 65 million men and women served Estimated 10 million killed 20 million wounded 115,000 U.S. troops killed http://news.bbc.co.uk/ http://raven.cc.ukans.edu

15. The Fourteen Points Issued by President Woodrow Wilson January 8, 1918 Unselfish peace and disarmament Two Purposes: 1) Shorten WWI by influencing powerful people 2) Provide framework for peace discussions www.whitehouse.gov

16. Treaty of Versailles June 28, 1919 – Treaty signed Germany not present while decisions made “Big Four” make major decisions Territory and reparations from Germany U.S. never ratifies Treaty of Versailles League of Nations created at Versailles http://history.acusd.edu Llyod George, Orlando, Clemenceau, Wilson

17. Pictures Sources http://raven.cc.ukans.edu/ www.worldwar1.com www.pbs.org/greatwar/ http://news.bbc.co.uk www.whitehouse.gov http://history.acusd.edu http://users.erols.com