1. World War I: Piecing It Together

2. Berlin Conference Classic example of imperialism

3. Formation of the Triple Entente (in response to the Triple Alliance) *Note The Triple Alliance was formed in 1882 and the Triple Entente formed in 1893.

4. Assassination of Archduke Ferdinand June 28, 1914

5. Austria-Hungary declares war on Serbia

6. Germany invades neutral Belgium Disregards earlier commitment to not do so Schlieffen Plan – implemented on August 3 rd, 1914.

7. Britain enters the war! Outraged, Britain declares war on Germany on August 4 th.

8. The Sinking of the Lusitania May 7, 1915

9. The sinking of The Arabic August 9, 1915

10. Sinking of the Sussex March 1916

11. Sussex Pledge Germany pledges to NOT sink ocean liners without warning and without providing for the safety of the passengers. March 1916

12. Sussex Pledge repealed February 1, 1917 Germany decided to renew unrestricted submarine warfare.

13. Zimmerman Note discovered! February 24, 1917, British naval intelligence revealed a German message they had intercepted and decoded. To the German Minister in Mexico… Instructions about what to do in case war broke out between Germany and the U.S. In this event, Mexico was to be offered an alliance with Germany.

14. Zimmerman Note (con’t.) With German support, Mexico was to attack the U.S. and “reconquer the lost territory of Texas, Arizona, and New Mexico.”

15. American Enters WW I

16. German government seeks an armistice.

17. Treaty of Versailles