Title: Most Secret Squadron
Subjects: Great britain, royal air force, World war, 1939-1945, aerial operations, british, Airplanes, military, World war, 1939-1945, regimental histories, History, World War, 1939-1945, British Aerial operations, Mosquito (Military aircraft), Regimental histories, Great Britain. Royal Air Force. Squadron, No. 618, Great Britain