| A | B |
| Guerilla | soldier who fights irregular warfare by using surprise tactics to harass and sabotage the enemy. |
| Jingoism | the swelling of national pride and desire for an aggressive foreign policy |
| Open Door Policy | US efforts to maintain trade with China |
| Joseph Pulitzer | publisher who used "yellow journalism" |
| George Dewey | leader of the U.S. Naval fleet that defeated the Spanish in the Philippines |
| imperialism | a stronger nations attempt to create empires by dominating weaker nations. |
| annexation | addition of new territory to an existing country |
| Roosevelt Corrollary | policy strengthening the Monroe Doctrine |
| Dollar Diplomacy | established by President Taft in order to promote foreign societies through investments |
| Theodore Roosevelt | President who promoted the "progressive" reforms |
| Spanish-American War | forced other countries to recognize the power of the United States |
| Rough Riders | nearly wiped out on Kettle Hill, Cuba |
| U.S. Army | weakest force during the Spanish American War |
| Willaim H. Seward | Secretary of State who urged the purchase of Alaska |
| William Jennings Bryan | was a member of the Anti-Imperialist League |
| Philippines | possession held by the United States after the Spanish-American War |
| The Pacific Rim | American sphere of influence during late 19th and early 20th centuries |
| "yellow journalists" | William Randolph Hearst and Joseph Pulitzer |
| Alfred T. Mahan | Naval officer who supported American expansion by maintaining a larger Navy |
| Henry Cabot Lodge | Massachusetts Senator who supported United States Imperialism |
| "paradox of power" | combination of contradictory attitudes toward the dominant country |
| Anti-imperialists | advocated giving territories Constitutional rights |
| Anglo-Saxon superiority | view shared by Imperialists and Anti-imperialists |
| Threat to "liberty" | Argument used by anti-imperialists |
| Higher taxes, debts and cost of military | economic argument used against imperialists |
| Assassination of Archduke Francis Ferdinand | immediate cause of World War I |
| Zimmermann Telegram | Germany's promise to Mexico to return Arizona, Texas and New Mexico, if they delared war on the United States |
| Woodrow Wilson | won 1916 election with "He kept us out of war!" slogan |
| neutrality | foreign policy of U.S. prior to entering World War I |
| Irish and German immigrants | supported the Central Powers against the British |
| Assassination of Austrian heir in Sarajevo | The immediate cause of World War I |
| Pacifists | Believed that war and violence should never be used to settle disputes |
| Central Powers | Austria-Hungary, Turkey, Germany, Bulgaria |
| Congress declared War on Germany | U-boats sank two US ships |
| modern and more lethal weapons | World War I became a stalemate |
| Open Covenants | Point one of Wilson's Fourteen Points for Peace |
| Formation of the League of Nations | Last point of Wilson's Fourteen Points for Peace |
| President Coolidge | "America must be kept American" |
| Emergency Immigration Act of 1921 | established quotas to restrict immigration |
| "Good Neighbor Policy" | "No state has the right to intervene in the internal or external affairs of another." |
| Kellogg-Briand Pact of 1928 | "condemn recourse to war . . . and renounce it as an instrument of national policy |
| Nativism | led to the Emergency Immigration Act of 1921 |
| Allied Powers | Great Britain, France, Russia, Serbia and Italy |
| Versailles Treaty | Formal ending of World War I |
| Armistice Day | Veterans Day |
| Reparations | payment for economic injury exacted from a defeated enemy |
| Self-determination | the right of a people to determine their own political status |
| Ottoman Empire | presently known as Turkey |
| Sarajevo | where Arch Duke Francis Ferdinand was assassinated |
| First article of Wilson's Fourteen Points | End of secret alliances |