| A | B |
| Make the World Safe for Democracy | primary reason Wilson gave Congress for why America should enter WWI in Europe |
| Central Powers | German and Austria-Hungary formed this group in WWI |
| Allied Powers | France, Great Britain, and Russia formed this group in WWI |
| The Hun | image associated with Germany following thier invasion of neutral Belgium in WWI |
| Battle of the Marne | the western front was established in France following this battle |
| Trenches | underground defensive networks associated with WWI |
| Tanks | new tool of war created to get across no man's land in WWI |
| Airplane | the Wright brothers are associated with helping to design this tool of war in WWI |
| Battle of the Somme | last effort Germany makes to break through the Allied line, failed |
| Gavrilo Princip | assinated the Archduke of Austria Hungary to begin WWI |
| Schlieffen Plan | German plan to be in Paris for lunch and St. Petersburg for dinner |
| U-Boat | unrestricted submarine warfare as a cause of WWI refers to this tool of war used by the Germans |
| Lusitania | British passenger ship sunk by a German U-Boat, cited as a cause of U.S. entry |
| Belgium | neutral country invaded by German, origins of the Hun image are here |
| Neutral | U.S. status in WWI from 1914 to 1917 |
| Zimmermann Note | German proposed alliance with Mexico |
| Selective Service Act | U.S. military draft to raise an army |
| Doughboys | term for American soldiers in WWI |
| Great Migration | movement of African Americans out of the South to Northern cities for wartime factory jobs |
| 19th Amendment | amendment passed in 1920 and helped by women's service in WWI |
| Influenza Epidemic of 1918 | killed more Americans than WWI |
| Armistice | November 11, 1918 on the Western Front |
| France | location of the Western Front in WWI |
| Russian Revolution | cited as the reason the Russian ended their participation as an Allied power in WWI |
| George Creel | leader of the Committee on Public Information |
| Herbert Hoover | leader of the U.S. Food Administration, encouraged volunteerism |
| Espionage and Sedition Acts | law passed to prevent Anti-American or Anti-War protest at home during WWI |
| Spiritualism | movement associated with trying to contact dead loved ones after WWI |
| Stab in the Back | theory proposed by Hitler to blame Germans at home for its loss in WWI |
| Abel Gantz | French film maker that produced an anti-war movie using real French soldiers as the walking dead |
| Katie Kallwitz | artists to designed a weep mother and father in a cemetery in Belgium to grief for her son and all those lost in WWI |
| Cenotaph | Britain's tomb of the unknown soldier build in WWI |
| Treaty of Versailles | treaty that ended WWI |
| Fourteen Points | Wilson's plan for lasting peace following WWI |
| League of Nations | association of nations formed after WWI to prevent war, a group the U.S. failed to join |
| Big Four | France, Italy, Great Britain, and U.S. for this group at the Paris Peace Conference |
| Poland | one of the several new countries formed at the end of WWI, this one was invaded by Hitler in 1939 to start WWI |