World War 1 Timeline By jwelch11 Jun 28, 1914 The Dukes Were Assassinated Jul 28, 1914 Austria-Hungary declares war on Sierba Period: Jul 28, 1914 to Nov 11, 1918 Begin and The End Of World War 1 Aug 10, 1914 Britan declares war on Germeny but the USA is still neutral Feb 1, 1915 TURKISH ARMY DISARMS ITS ARMENIAN TROOPS Feb 2, 1915 GERMAN SABOTEURS AT WORK IN AMERICA Mar 18, 1915 GERMAN WOMEN DEMONSTRATE FOR PEACE Apr 1, 1916 THE ESCADRILLE AMÉRICAINE, LATER THE LAFAYETTE ESCADRILLE, IS FORMED Feb 3, 1917 US severs ties with Germany Mar 1, 1917 Germany plots against US Apr 6, 1917 US declares war on Germany Jun 25, 1917 US troops land in France May 28, 1918 AMERICANS PREVAIL IN BATTLE OF CANTIGNY Nov 11, 1918 Germany signs armistice