MI14, or British Military Intelligence, Section 14 was a department of the British Directorate of Military Intelligence. It was an intelligence agency of the War Office, which specialised in intelligence about Germany. [1]
One of MI14's most valuable sources, codenamed Operation Columba, consisted of reports returned by pigeons dropped over Nazi-occupied countries in packs containing a miniature spying kit. [2]
It was absorbed by the Secret Intelligence Service (MI6) after the Second World War. [3]