Which policy was advocated by George Kennan of the U. S. State Department in order to prevent the Soviet Union from expanding its territory?

containment

imperialism

isolationism

appeasement

This was the containment policy, according to which Communism was to be contained, that is prevented from spreading to new countries.

Appeasement is associated with another power - the Nazi Germany and the pre-war attempts to avoid war with Nazi Germany. (in late 1930s)

The correct answer for the question that is being presented above is this one: "containment." The policy that was advocated by George Kennan of the U. S. State Department in order to prevent the Soviet Union from expanding its territory is that of containment.