| A | B |
| Central Powers | those fighting for the Triple Alliance(Germany, Austia-Hungary) and the Ottoman Empire and Bulgaria |
| U-boats | German submarines(from German word Unterseeboot-underwater boat) |
| Pancho Villa | led a group of Mexican guerillas into the United States burning homes and killing Americans in opposition to the US overthrowing Huerta(the Mexican leader) |
| Propaganda | information designed to influence opinion |
| Triple Entente | alliance between Britain, France, and Russia |
| Liberty and Victory Bonds | bonds sold during and after the war by the U.S. |
| 369th Infantry | An all African American division that was honored for gallantry in combat-the French Croix de Guerre(war cross) |
| Sedition Act of 1918 | expanded the meaning of Espionage Act and made illegal any public expression of opposition to the war |
| Great Migration | African Americans moving from the South to the North |
| War Industries Board | coordinate the production of war materials |
| General John J. Pershing | US General that led troops across the border into Mexico to find and capture Pancho Villa, he was also the leader of the American Expeditionary Forces in WWI |
| Marshall Ferdinand Foch | the Supreme commander of the Allies(a French commander) and ordered massive counterattacks along the front during the Battle of the Argonne Forest |
| "no man's land" | space between opposing trenches that was rough, barren pockmarked with craters from artillery fire |
| Bolsheviks | a group of Communists that overthrew the Russian government(Menscheviks) in November 1917 and signed a separate peace treaty with Germany |
| Reparations | payment by the losing country in a war to the winner for the damages caused by the war |
| Communist International | an organization for coordinating the activities of Communist parties in other countries |
| General strike | a strike involving all the workers in a particular geographic location |
| Deported | to expel(make leave) individuals from the country |
| Cost of Living | the cost of purchasing goods and services essential for survival(food, clothing, shelter) |
| General Intelligence Division | a special division within the Justice Department, headed by J. Edgar Hoover, to stop the spread of Communism-it eventually became the FBI |