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 Panzer Army under Rommel report for January 12, noting no major operations but lively artillery action; that a successful Allied raid on Castel Benito was due to the failure of air defences, on January 13; of the losses and damage caused in an Allied air raid on Castel Benito, on January 12; of an Allied air raid on Gadames; that the Italians are in occupation of Mareksen and Fort Saint, on January 13; a German intelligence assessment of Karama whence French air craft left for Mursurk, on January 10, and of the Bou Ngem tank depot and park where five Allied brigades are in preparation for an enveloping attack on the German flank; of orders for the preparation of ammunition, transport and fuel supplies for Tripoli for an operation planned for January 15; a Tunisian situation summary from the German Naval Command in Rome, on January 12; that Kesselring orders an increase in the construction and operational use of ferries, on January 12; and a German Air Force (GAF) situation report on the Russian Front and North Africa on January 13; on the Russian Front: that the 4th Air Corps was ordered to prevent the Soviet advance along and across the Don 33 miles east of Rostov; and that Romanian and Italian troops in the front line are facing a Soviet Don Offensive with Hungarian troops on the Southern flank, on January 10; and on France: that the Germans are carrying out arrests of French officers and civilians without the consent of the Vichy Government, on January 9.