WWI Major Events and Leaders Major Events of WWI Assassination of Austria’s Archduke Ferdinand Sinking of the Lusitania- German Submarines sink a cruise ship with Americans on it; the US demands the Germans stop unrestricted submarine warfare Zimmerman TelegramGermany attempts to gain the support of Mexico against the US because they intend to resume unrestricted Submarine warfare Major Events of WWI United States enters war Russia leaves the war- Lenin and the Communists win the Russian Revolution and get out of WWI Major Leaders of WWI Kaiser Wilhelm II Woodrow Wilson Outcomes and global effects Colonies’ participation in the war, which increased demands for independence End of the Russian Imperial, Ottoman, German, and Austro-Hungarian empires Enormous cost of the war in lives, property, and social disruption Treaty of Versailles Forced Germany to accept guilt for war and loss of territory and pay reparations Limited the German military League of Nations International cooperative organization Established to prevent future wars United States not a member Failure of League because it did not have power to enforce its decisions The mandate system The system was created to administer the colonies of defeated powers on a temporary basis. France and Great Britain became mandatory powers in the Middle East. French Mandates in the Middle East Syria Lebanon British Mandates in the Middle East Jordan Palestine (part became independent as the State of Israel)