| A | B |
| diplomacy | skill in handling international relations |
| annex | to add or join to a larger thing |
| Manifest Destiny | US has right and duty to expand |
| justify | to show to be right or reasonable |
| imperialism | when a stronger nation dominates a weaker country |
| yellow journalism | exaggerated reporting to attract readers |
| internationalism | intervening in other countries' affairs |
| collective security | working with other countries to influence affairs |