Which policy did Carter adopt to defend the Persian Gulf?

• A. Monroe Doctrine
• B. Truman Doctrine
• C. Reagan Doctrine
• D. Carter Doctrine

Answer: (D)

Defending vital strategic interests abroad with a willingness to use military force is tested here. The Carter Doctrine, proclaimed in 1980, stated that the United States would use any means necessary—including military force—to defend the Persian Gulf and ensure access to oil and vital sea lanes. This response came as concerns about Soviet influence and upheaval in Iran threatened Gulf stability and energy supplies. It’s distinct from the Monroe Doctrine, which focused on the Americas; the Truman Doctrine, which framed containment of communism globally; and the Reagan Doctrine, which supported anti-communist forces in various regions during the 1980s. So, the policy that directly defends the Persian Gulf is the Carter Doctrine.