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 German Air Force (GAF) situation report for January 20, confirming there were no major movements in the Allied advance; that the Panzer Army was withdrawn to new positions; and Allied air raids on Castel Benito and Mellaha; on the Mediterranean: that GAF units are ordered to continue the smashing up of a large Allied convoy, on January 20; that after the convoy, units are to concentrate on Bone harbour, with all available air craft and crews to be used; that a large Allied convoy is approaching Algerian waters; of high levels of activity, and the inference of a combined operation against Tripoli, Sfax and Sousse, on January 20; that Kesselring orders ruthless employment of personnel and material for the continuous loading of ferries at Trapani, on January 19; and that the fuel tanker Alfredo was sunk by air-borne torpedo, on January 20; on the Russian Front: of fluctuating fighting south of Krasnodar; that German forces are withdrawing to the west bank of the Manych at Proletarskaya; and of planned withdrawals along the line on January 19; a 4th Air Fleet report for January 19-20, noting German troop withdrawals south of Krasnodar; and that the 4th Air Fleet and GAF Command at the Don were ordered to strike at Soviet forces advancing in the direction of Voroshilovgrad; and Naval Headlines, covering the danger of blockade running no longer being imminent; and that destroyers were ordered to go to Kristiansand South.