World War I/Russian Revolution By hcps-rodrigar1 Feb 8, 1904 Russo-japanese war Jun 28, 1914 Assassination of archduke franz ferdinand Jul 9, 1914 Russia mobilizes army Aug 4, 1914 Germany invades blegium May 7, 1915 Sinking of the lusitania Nov 18, 1916 Start of the battle of the somme Mar 2, 1917 Russian czar nicholas II abdicates Apr 6, 1917 U.S. enters world war I Mar 3, 1918 Russia signs treaty of brest-litovsk
