At the present moment in world history nearly every nation must choose between alternative ways of life. The choice is too often not a free one. One way of life is based upon the will of the majority, and is distinguished by free institutions, representative government, free elections, guarantees of individual liberty, freedom of speech and religion, and freedom from political oppression. The second way of life is based upon the will of a minority forcibly imposed upon the majority. It relies upon terror and oppression, a controlled press and radio, fixed elections, and the suppression of personal freedoms. I believe that it must be the policy of the United States to support free peoples who are resisting attempted subjugation by armed minorities or by outside pressures." I believe that we must assist free peoples to work out their own destinies in their own way."—From the Truman Doctrine, 1947

Which of the following U. S. policies is best expressed by the ideas in this excerpt?

1) Collective security
2) Massive retaliation
3) Containment
4) Isolation