World War I

Central Powers
      -Germany, Austria-Hungary, Italy
           -Italy joined Allies in 1915

Allied Powers
      -France, Russia, Great Britain

Archduke Franz Ferdinand
      -Sarajevo
      -Serbia

Non-Belligerent Status
      -Contraband

Preparedness Program  (1915)

November, 1916
      -"He Kept Us Out of War"

April, 1917
       -Declaration of War

Cultural Factors
      -Ethnicity

Economic Factors
       -Merchants of Death

Psychological Factors
     -Karl von Clauswitz
           -Louvain
                 -Johann Wolfgang von Goethe
                 -Atilla the Hun
           -Rape of Belgium

Terror Weapons
      -poison gas
      -flame throwers
      -submarines

Gulf Flight  (May 1, 1915)
Lusitania  (May 7, 1915)
Arabic Pledge  (August, 1915)
Sussex Pledge  (March, 1916)

Unrestricted Submarine Warfare  
     -January 31, 1917

Zimmermann Telegram
      -February 25, 1917

Declaration of War
       -April 5, 1917

      Europe, 1914

 World War I in Europe

         Louvain

       Submarine 

  Western Front, 1918