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 Mediterranean: that the operational orders for the German Air Force (GAF) at Elmas are to attack an Allied convoy on November 8; and that the 10th Air Corps was ordered by Kesselring to give priority to air recces of Cyprus and the Suez on November 7; and on North Africa: that the Germans are to make a front at Halfaya, on November 7.