| A | B |
| H-bomb | The hydrogen bomb-a thermomuclear weapon much more powerful that the atomic bomb. |
| Dwight D. Eisenhower | President who ordered the CIA to begin taking covert actions in order to counter covert actions he assumed were being made by the Soviets. |
| John Foster Dulles | Eisenhower's Secretary of State who fought Communism with the idea of brinkmanship. |
| Brinkmanship | The practice of threatening an ememy with massive military retaliation for any aggression. |
| CIA | The Central Intelligence Agency--a U.S. agency created to gather secret information about foreign governments. |
| Warsaw Pact | A military alliance formed in 1955 by the Soviet Union and its Eastern European satellites. |
| Nikita Khruschev | Head of the Soviet Communist party who critized his predecesoor, Stalin, for hainv committed cromes against the Soviet people. |
| Eisenhower Doctrine | A U.S. commitment to defend the Middle East againts attack by any Communist country, announced by President Dwight D. Eisenhower in 1957. |
| Francis Gray Powers | The pilot who flew the U-2 mission and was shot down inside the Soviet Union. |
| U-2 incident | The downing of a U.S. spy plane and capture of its pilot by the Soviet Union in 1960. |