World War I Project By Vistavar Jun 28, 1914 Francis Ferdinand Gets Assassinated Jul 28, 1914 Austria Declares War on Serbia Period: Jul 28, 1914 to Nov 11, 1918 World War I Timeline Aug 1, 1914 Germany Declares War on Russia Aug 3, 1914 Germany Declares War on France and Invaded Belgium. Germany Implements the Schlieffen Plan. Aug 3, 1914 Britain Declares War on Germany Aug 23, 1914 Germany Invades France. Oct 29, 1914 Turkey Enters the War on Germany’s Side. May 23, 1915 Italy Declares War on Germany and Austria Apr 6, 1917 United States of America Declares War on Germany Nov 11, 1918 Germany Signs an Armistice with the Allies