The Defector is a nonfiction Cold War spy history by Richard Kerbaj. It tells the story of Oleg Lyalin, a former KGB officer who defected to the West, and the secrets he revealed.
The book draws on newly declassified intelligence documents and dozens of interviews with spymasters. It covers a Soviet mission to plant fake Kremlin agents within British and American intelligence services, and the paranoia that followed.
Lyalin's defection led MI5 to rethink its relationship with the CIA. It also discredited an earlier KGB defector, Anatoly Golitsyn, and ultimately destroyed the reputation of the CIA's head of counterintelligence, James Jesus Angleton. The story involves lies, disinformation, Kremlin deception campaigns, intelligence failures by the CIA and MI5, and a tangled love life.
- Author
- Richard Kerbaj
- Subject
- Oleg Lyalin, KGB defector who aided MI5
- Sources
- Newly declassified intelligence documents and dozens of interviews with spymasters
- Topics
- Cold War espionage, MI5 and CIA relations, Soviet deception campaigns