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 reports on South Europe: the Germans report that the Allies are in Ostia and at the gates of Rome, on June 4; and of German Air Force (GAF) airfields in central Italy being ordered to be prepared to remove their supplies and destroy the airfields, on June 3.