| A | B |
| dollar diplomacy | the US policy of using the nation's economic power to exert influence over other countries |
| yellow journalism | the use of sensationalized and exaggerated reporting by newspapers or magazines to attract readers |
| Panama Canal | an artificial waterway built to provide a shortcut between the Atlantic and Pacific oceans, opened in 1914 |
| imperialism | the policy of extending a nation's authority over other countries by economic, political, or military means |
| Foraker Act | legislation passed in 1900, in which the US ended military rule in Puerto Rico and set up a civil government |
| Platt Amendment | a series of provisions that, in 1901, the US insisted Cuba add to its new constitution, commanding Cuba to stay out of debt and giving the US the right to intervene in the country and the right to buy or lease Cuban land for naval and fueling stations |
| Roosevelt Corellary | an extenstion of the Monroe Doctrine in 1904, in which the US claimed the right to protect its economic interests by means of military intervention in the affairs of Western Hemisphere nations |
| protectorate | a country whose affairs are partially controlled by a stronger power |
| Open Door notes | messages sent by Sec. of State John Hay in 1899 to Germany, Russia, Great Britain, France, Italy, and Japan, asking the countries not to interfere with US trading rights in China |
| U.S.S. Maine | US warship that mysteriously exploded and sank in the harbor of Havana, Cuba on February 15,1898 |
| Treaty of Paris | the agreement ending the Spanish-American War, in which Spain freed Cuba, turned over the islands of Guam and Puerto Rico to the US, and sold the Philippines to the US for $20 million |
| Boxer Rebellion | a 1900 rebellion in which members of a Chinese secret society sought to free their country from Western influence |
| San Juan Hill | an infantry attack on this strategically important site during the Spanish-American War led to US newspapers declaring TR a hero |
| Rough Riders | a volunteer cavalry regiment, commanded by Leonard Wood and TR, that served in the Spanish-American War |
| Pearl Harbor | in 1887, US military and economic leaders pressured Hawaii to allow the US to build a naval base at this site |