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Period: to
World War l
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June, 1914
Arch Duke Francis Ferdinand is Killed -
July 28, 1914
Australia-Hungary starts war on Serbia -
July 30, 1914
German Empire mobilizes troops. -
August 1, 1914
Germany declares war on Russia
French mobilize troops -
September, 1914
Instead of swords on horseback, machine guns were introduced to modern warfare -
1915
German U-boats sink the Luisitania killing 130 American passagers -
1915
Poison Gas was first introduced -
April 29, 1916
Surrender of British troops at the stage of Kat in Mesopotamia -
July 1, 1916
The first battle was bloody and lasted until mid-November. -
April 6, 1917
United States congress declares war on Germany -
June, 1917
United States passes the Espionage Act -
November 11, 1918
Armistice with Germany is signed -
June 28, 1919
The treaty of Versailles is signed, the League of Nations is created -
1915
Trench warfare crosses France from the Belgium coast to the Swiss Alps.