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 the Southern Russian Front: of German Air Force (GAF) demands for increased supplies of aviation fuel for the Stalingrad area, on November 22; on North Africa: that no damage was done as a result of Allied attacks on Tripoli during the early hours of November 25; that Italian Air Force bombers are requested to attack Bone early on November 26; and a GAF Tunis report for November 24.