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 North Africa: that the German Air Force (GAF) are in urgent need of aviation fuel, on July 18; and a GAF report of a Stuka attack on tanks on July 18; and on the Mediterranean: that the AOC (Air Officer Commanding) in Chief South received a report of paratroop units coming from Germany from July 18-21.