| A | B |
| isolationism | avoiding involvement in other countries' affairs |
| imperialism | building empires by imposing political and economic control over peoples around the world. |
| sphere of influence | areas where another nation ha economic and political control |
| protectorate | an independent country whose policies are controlled by an outside power |
| isthmus | a narrow strip of land joining two larger areas of land |
| corollary | a logical extension of a doctrine or proposition |
| dollar diplomacy | a policy based on the idea that economic ties were the best way to expand American influence |
| militarism | glorification of the military; the belief or desire of a government or people that a country should maintain a strong miltary capability and be prepared to use it aggressively to defend or promote national interest. |
| nationalism | pride in one's nation or ethnic troup |
| trench warfare | soldier fire on one another from opposing line of dugout ditches |
| protectorate | an independent country whose policies are controlled by an outside power |
| illiterate | unable to read and write |
| communism | an economic and political system based on the idea that social classes and the right to private property should be eliminated |
| convoy | a large group of merchant vessels sailing together |
| armistice | a halt in fighting that allows peace talks to begin |
| reparations | payments to cover war damages |