| A | B |
| imperialism | The policy of extending the rule of a more powerful nation over smaller or weaker nations |
| Monroe Doctrine | Policy stated by President Monroe in 1823 stating that there should be no further European colonization in the Western Hemisphere |
| annex | To add, to incorporate territory into the control of a country |
| Open Door Policy | Policy advocated by the US which stated that all nations should have equal trading opportunities with China |
| Big Stick Policy | Slogan name given to the Roosevelt Corollary |
| Roosevelt Corollary | Roosevelt's addition to the Monroe Doctrine stating that the United States would use diplomacy as possible but would be militarily prepared to defend the Doctrine and the Western Hemisphere |
| isolationism | The policy of remaining uninvolved in other nations' affairs |
| sphere of influence | An area where one nation has dominance (ie: an area where only one nation is allowed to trade with the home nation) |
| Dollar Diplomacy | The term used to describe the US efforts to further power and control in Latin America and Asia by using economic strength to guarantee loans |
| modernization | The process of a nation becoming more advanced; similar to other modern nations |
| westernization | The process of a nation becoming more like American and Western European nations |
| humanitarian | Concern with promoting the welfare of all human beings |
| unincorporated territory | An area that is controlled by America, but is NOT an actual state in the United States |
| canal | A man-made waterway created for improving transportation |