The Great War By AndrewKrar Jun 28, 1914 Assassination of Archduke Franz Ferdinand Jul 28, 1914 Austria-Hungary Declares War on Serbia Aug 1, 1914 Schlieffen Plan Sep 5, 1914 First Battle of the Marne Apr 1, 1915 Gallipoli Campaign May 7, 1915 Sinking of Lusitania Apr 2, 1917 America Enters the War Nov 1, 1917 Russian Revolution Jul 1, 1918 Second Battle of the Marne Nov 11, 1918 Armistace Jun 28, 1919 Treaty of Versailles
