Title: The secret listeners
Subjects: World War, 1939-1945, Secret service, British Personal narratives, Great Britain. Royal Air Force. Y Service, Great Britain, Great britain, royal air force, World war, 1939-1945, secret service, great britain, World war, 1939-1945, personal narratives, british, Abhördienst, Funkaufklärung, Weltkrieg (1939-1945)
Places: Great Britain