-
He was assassinated in Sarajevo, most likely by the Serbians. -
Austria-Hungary declares war on Serbia. -
-
German forces shock Allied soldiers along the Western Front by firing more than 150 tons of lethal chlorine gas against two French colonial divisions at Ypres in Belgium. -
The Allies launched their invasion of the Gallipoli Peninsula -
-
The British government authorized the evacuation to begin from Suvla Bay on December 7; the last troops left Helles on January 9, 1916. -
British empire fights the German empire alongside the French Third Republic. -
British cryptographers deciphered a telegram from German Foreign Minister Arthur Zimmermann to the German Minister to Mexico, Heinrich von Eckhardt, offering United States territory to Mexico in return for joining the German cause. -
-
Ended Russia's participation in WW1 -
The treaty forced Germany to surrender colonies in Africa, Asia and the Pacific