Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence

A file of signals intelligence reports, messages, and correspondence issued by the Government Code and Cypher School and sent by the head ('C') of the Secret Intelligence Service (MI6) to the Prime Minister, Winston Churchill. This file includes the following report on Southern Europe/Italy: that a ground attack group of the German Air Force (GAF) is to re-deploy within Italy under the greatest secrecy, with Hitler's order to be obeyed implicitly, on June 17.