Question

The United States committed to a Cold War

policy of mutual defense when it
(1) aided the Nationalists in China
(2) established the Eisenhower Doctrine
(3) joined the North Atlantic Treaty Organization
(NATO)
(4) rejected United Nations efforts to halt the
development of atomic weapons

Answer 1

The United States committed to a Cold War policy of mutual defense when it "(3) joined the North Atlantic Treaty Organization (NATO)" which contained the Soviets.