Answer:
The United States' creeping involvement in the Middle East began later, during the Truman administration, and continued through the 21st century. Truman Administration: 1945–1952 During World War II, American troops were stationed in Iran to help transfer military supplies to the Soviet Union and protect Iranian oil.
United States foreign policy in the Middle East has its roots in the 18th century Barbary Wars in the first years of the United States of America's existence, but became much more expansive in the aftermath of World War II. American policy during the Cold War tried to prevent Soviet Union influence by supporting anti-communist regimes and backing Israel against Soviet-sponsored Arab countries.
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