What foreign policies were developed to address Soviet aggression in Europe?

The Truman Doctrine was informally extended to become the basis of American Cold War policy throughout Europe and around the world. It shifted American foreign policy toward the Soviet Union from an anti-fascist alliance to a policy of containment of Soviet expansion as advocated by diplomat George Kennan.

Explanation:

The Truman Doctrine was informally extended to become the basis of American Cold War policy throughout Europe and around the world. It shifted American foreign policy toward the Soviet Union from an anti-fascist alliance to a policy of containment of Soviet expansion as advocated by diplomat George Kennan.

Explanation:

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warfare was the primary means of cultural transmission in both regions.