Michael nimeskern By mnimeskern17 Jun 28, 1914 Assassination Franz Ferdinand was assasinated Jul 1, 1914 Serbia Allies Jul 28, 1914 Austria-Hungary Central power Aug 1, 1914 Great Britain Allies Aug 8, 1914 Germany Central power Aug 10, 1914 Belgium Allies Aug 19, 1914 France Allies Aug 24, 1914 Russia Allies Oct 27, 1914 Ottoman Empire Central powers May 4, 1915 Italy Allies Oct 1, 1915 Bulgaria Allies Mar 13, 1916 Potrugal Allies Oct 12, 1916 Romania Allies Jul 1, 1917 Greece Allies