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Asssassination of Franz Ferdinand
Caused Hungary to declare war on on Serbia, and the tenuous peace between Europe's great
powers collapsed. -
Austria-Hungary declares war on Serbia
Exactly one month after the assassination of Ferdinand, Austria-Hungary declaared war on Serbia for the crime of killing Ferdinand -
Battle of Marne
Was a First World War battle fought from 5–12 September 1914 and it resulted in an Allied victory against the German Army -
Race to the sea
Opposing sides tried to trap the Northern flank of the opposing army until both sides reached the coast of belgium -
Germany knocks Russia out of the war
Germany was forced to surrender under Russia and Germany was able to send more forces back to the Western Front to fight the Allies -
Sinking of RMS Lusitania
The sinking of the Lusitania was caused by Germany waging submarine warfare against the United Kingdom of Great Britain and Ireland -
Germany resumes Unrestricted Submarine Warfare
Lethal threat of the German U-boat submarine is used once again after it had been previously suspended in response to pressure from the United States and other neutral countries. -
"Spring Offensive"
A series of German attacks along the Western Front during the First World War -
Meuse-Argonne Offensive
The initial battle began on 26 September at 5:30am and the Allies began their final large-scale offensive of World War -
Armistice ends hostilities
The agreement that ended the fighting in western Europe that comprised the First World War.