How could containment the Truman doctrine the Marshall plan and NATO rightly be called the four main pillars of us foreign policy during the cold war?

Answer 1

The policy of containment was the theory that communism was scattered and could be contained as a method of preventing its spread. The Truman Doctrine supported United States intervention whenever the Soviet Union attempted to take authoritarian control, or pressure smaller democratic countries. The Marshall Plane provided restoration funding for the allies, with the exclusion of Russia. NATO formed a group that would join with the other member countries to protect countries from invasion or aggression from belligerent countries. The four policies served the purpose of uniting the allies, containing the communist threat, promising to assist countries who were being bullied upon by the Soviet Union, and joining other NATO allies in keeping peace in western Europe.