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: a Tunis Air Corps report of extensive Allied air attacks against Axis airfields at Fatnassa, Gabes and Freya Ketana on March 21; German Air Force (GAF) air reconnaissance reports for March 22, noting that Allied forces are heading towards Gabes; and of the Tunis Air Corps' targets for the night of March 22/23.