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 Panzer Army, expecting a large-scale Allied attack, calls for air support in the forward area, on October 23; and Naval Headlines, covering a German naval formation with a destroyer escort being expected in Trondheim, and that an Allied convoy is gathering off Iceland.