This book argues that American Exceptionalism and Eurasianism engendered the ideological principles that propelled the geostrategic interests of the Soviet Union and the United States in the postwar period. The correlation between ideology and the pursuit of certain geostrategic aims led to the creation of the interventionist mechanisms to establish a sound management of the international order in the postwar era. The elements of American Exceptionalism, the policy of containment, the Marshall Plan and the Truman Doctrine served as instruments that contributed to manage the emerging postwar international order in an effective manner. The Soviet Union subjected its ideological apparatus, guided by an Eurasianist orientation and the country’s position as an “inland” power, to the political expediencies of the postwar period. The “national front” strategy allowed Moscow to acquire control over the political and economic systems of the Eastern European nations with the ultimate purpose of entrenching its geostrategic position in the postwar scenario.