During the Cold War it was taken for granted that Soviet foreign policy was driven by the tenets of Marxism-Leninism toward imperial expansion and subversion. Stalin, Khrushchev, Brezhnev, and even Gorbachev were viewed as ideologues bent on leading their Third World clients to resist U.S. hegemony. In this episode, historians Sergey Radchenko and Vladislav Zubok weigh the role of ideology versus other, more "realist" factors, such as the quest for security and the recognition of the legitimacy of the Kremlin's interests. The focus of the discussion is Radchenko's latest book "To Run the World: The Kremlin's Cold War Bid For Global Power." 

Additional reading:

Collapse: The Fall of the Soviet Union by Vladislav Zubok