The Truman Doctrine and the Eisenhower Doctrine were United States foreign policies concerning

a. the international balance of payments.

b. the containment of communism.

c. worldwide environmental pollution.

d. nuclear disarmament.

Both the Truman Doctrine and the Eisenhower Doctrine were specifically aimed at stopping the spread of communism - the correct answer is b. the containment of communism.

For example, the Eisenhower Doctrine focused on the Middle Eastern Countries and supported those that did not want to be communist.