In this episode, BBC National Security Correspondent Gordon Corera discusses his book "Operation Columba - The Secret Pigeon Service: The Untold Story of World War II Resistance in Europe." The book reveals the fascinating, untold story of how British intelligence secretly used homing pigeons as part of a clandestine espionage operation to gather information, communicate, and coordinate with members of the Resistance to defeat the Nazis in occupied Europe during World War II. Recorded 1 Dec 2023. Interviewer: Jim Hughes, AFIO President and former CIA Operations Officer.