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Formation of the Triple Alliance
The Triple Alliance was an alliance between Germany, Austria-Hungary, and Italy. -
Formation of the Triple Entente
The Triple Entente was an alliance between France, Great Britain, and Russia. -
Assassination of Archduke Ferdinand
Archduke Ferdinand of Austria-Hungary was assassinated by Gavrillo Princip, who was a member of the Black Hand(a rebel group in Bosnia) -
Great Britain Declares War on Germany
In response to the Schlieffen Plan, Great Britain delcared war on Germany. -
Sinking of the Lusitania
The Lusitania, which carried civilians and goods between the United States and Britain, was destroyed by German U-Boats. -
Germany resumes unrestricted submarine warfare
Germany resumed attacking merchant ships and killing civilians. -
Wilson asks Congress to declare war with Germany
After the Sinking of the Lusitania and the Zimmerman Note, it was inevitable that America would declare war on Germany. -
The Zimmerman Note is Published in Newspapers
The Zimmerman Note was a note intercepted by the British, which was written to Mexico declaring the start of unrestricted U-Boat warfare. -
Selective Service Act
This act required men from the ages of 21 to 30 to register to be in the war. -
US Forces arrive in Europe
The AEF arrived in Europe to help the Allies.
