Final answer:
The subject of this question is History. President Dwight Eisenhower and his Secretary of State John Foster Dulles emphasized the use of nuclear weapons, alliances, and covert activities to counter the Soviet Union. This approach was known as the Eisenhower Doctrine.
Step-by-step explanation:
The subject of this question is History. President Dwight Eisenhower and his Secretary of State John Foster Dulles led the United States during the Cold War. They emphasized the use of nuclear weapons, alliances, and covert activities to counter the Soviet Union. This approach was known as the Eisenhower Doctrine. Eisenhower believed that by building up the nuclear arsenal and strategic air power capabilities, the United States could reduce the size of its military and maintain security through nuclear deterrence.