-
Period: to
Development of Alliances - Triple Alliance
Germany, Austria-Hungary, and Italy. -
Period: to
Development of Alliances - Triple Entente
Great Britain, France, and Russia -
Period: to
Stalemate on the Western Front
Trench Warfare. -
Period: to
Development of Alliances - Central Powers
Germany, Austria-Hungary, and Turkey. -
Period: to
Technology in WWI
Mustard gas, machine guns, and U-boat. -
The Assassination of Archduke Franz Ferdinand
Franz Ferdinand. -
Austria Declares War on Serbia
-
Period: to
Battle of Tannenberg
-
Period: to
First Battle of the Marne
-
Period: to
Development of Alliances - Allied Powers
France, Great Britain, Russia, Italy, Japan, and the United States (from 1917) -
Sinking of the Lusitania
-
Period: to
Hindenburg Line
-
Period: to
Russian Revolution
Czar Nicholas II and the Bolsheviks -
America Joins WWI
Zimmerman Note
Neutrality
Woodrow Wilson -
Russia's Withdrawal from WWI
Czar Nicholas II and the Bolsheviks -
Armistice
-
Treaty of Versailles
