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: on the German 90th Light Division's rearguard, on March 28; of the German Air Force (GAF) in Tunis' targets for operations for the night of March 30-31; and that the tanks of two Panzer divisions are to be withdrawn for rest, re-fitting and training, on March 28.