Keywords: Oleg Penkovsky CIA.png en Photograph of Soviet Officer Oleg Penkovsky 2014-03-25 21 11 07 https //www cia gov/library/publications/historical-collection-publications/the-warsaw-pact-forces/index html Central Intelligence Agency PD-USGov Uploaded with UploadWizard Cold War Espionage Oleg Penkovsky |