Operation Columba--The Secret Pigeon Service: The Untold Story of World War II Resistance in EuropeThe 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. Between 1941 and 1944, British intelligence dropped sixteen thousand homing pigeons in an arc across Nazi occupied Europe, from Bordeaux, France to Copenhagen, Denmark, as part of a