| A | B |
| Spanish American War | Conflict between Cubans and Spain; U.S. entry into the war began with the sinking of the U.S.S. Maine |
| Treaty of Paris (1898) | Treaty that ended Spanish-American War; U.S. gained control of Guam, Philippines, and Puerto Rico; recognized independence of Cuba |
| Platt Amendement | Replaced Platt Amendment by asserting U.S. right to intervene in Cuba whenever U.S. interests were threatened |
| Open Door Policy | Proposed by John Hays, U.S. Secretary of State; purpose was to secure U.S. rights to trade in China |
| Panama Canal | U.S. supported Panamanian uprising against Columbia to gain rights to build Panama Canal |
| Roosevelt Corollary | Extension to Monroe Doctrine issued by Teddy Roosevelt; U.S. has right to intervene in Central and Latin America to protect U.S. interest |
| Emilio Aguinaldo | Led insurgence movement against U.S. in the Philippines |
| Teller Amendment | according to this amendment U.S. promised not to assert control over Cuba once independence was achieved |