| A | B |
|---|
| Central Powers | led by Germany and Austria-Hungary |
| Allies | led by Great Britain, France, Russia (at first), and the U.S.A. (later) |
| propaganda | one-sided beliefs, ideas, or information spread to help a cause or hurt the opposition |
| unrestricted submarine warfare | German U-Boat policy to attack any vessel entering Allied ports |
| Lusitania | British passenger ship (and secret weapons carrier) sunk by German u-boat with over 100 Americans on board |
| Zimmerman telegram | German invitation to Mexico to fight against U.S. to regain lost territories |
| Selective Service Act | established a draft to raise an army |
| Espionage Act of 1917 | crime to interfere with the draft and barred "treasonous" materials from the mail |
| Sedition Act of 1918 | crime to speak or publish anything "disloyal, profane... or abusive" about the government |
| Red Scare | intense fear of communism following the Russian Revolution of 1917 |
| Fourteen Points | Wilson's plan for victory and peace |
| self-determination | countries should decide political questions for themselves |
| Treaty of Versailles | treaty between Allies and Germany, U.S. refused to sign it |
| League of Nations | Wilson's baby -- international peacekeeping organization |
| neutrality | U.S. policy for most of World War I |
| Woodrow Wilson | U.S. president during World War I |
| Schenck v. United States | court ruled that government can stop free speech if it poses a "clear and present danger" |
| Washington Naval Disarmament Conference | five largest navies agreed to limit warship production |
| Kellogg-Briand Pact | outlawed war except in self-defense |
