Final answer:
The Eisenhower Doctrine, enacted in the 1950s, pledged U.S. military support to Middle Eastern governments threatened by 'International Communism', marking a notable increase in American involvement and influence in the region.
Step-by-step explanation:
The Eisenhower Doctrine greatly influenced foreign policy in the 1950s. The policy was proclaimed by President Eisenhower in 1957 in response to the potential spread of communism and Soviet involvement in the Middle East. The Doctrine pledged that the United States would use its military strength to defend Middle Eastern governments in danger of being overthrown by the forces of "International Communism".
This policy subsequently led to the United States extending financial and military aid to friendly governments such as Lebanon. The Eisenhower Doctrine marked a significant increase in U.S. involvement in the Middle East, setting a precedent for future American foreign policies in the region where the U.S. sought to maintain a balance of power and prevent the area from coming under the influence of hostile force, namely Soviet Union in this context.
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