Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence

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: BONIFACE summaries for the Deputy Prime Minister (PM) and Mr Loxley; and also a SLICK copy to be sent to the PM who is abroad; on Southern Europe: that the 114th Division is to leave Croatia by January 20 to replace the Hermann Goering Division in Italy; that the 114th Division is to cease involvement in Operation JACKASS on January 12; of German realignment plans in Yugoslavia after the departure of the 114th Division, including the possible sending of the 2nd Croat Jaeger Brigade from Sisak by January 12 for rest and refit at a German training ground; a German assessment of an Allied convoy movement from Gibraltar on January 6, heading for the Gulf of Taranto via Algiers, Bone and Malta, that another large Allied convoy is to leave Gibraltar between 12 and 15 January for Bari and Barletta carrying a probable landing force, and that both may be possible preparations for an Allied campaign in Greece; of Operation PUTRID, probably the planned German operation against the Dalmatian Islands and scheduled for January 12, being delayed by 24 hours; a German Air Force (GAF) detailed intelligence summary for January 11 including details of large-scale Allied air raids against Sofia and Piraeus and extensive air reconnaissance by both sides; and GAF intelligence reports of January 12 indicate that some 150,000 people left Sofia on January 11 as a result of Allied air raids; on the Russian Front: that emergency anti-aircraft weapons systems are to be put into Varna, in Bulgaria, on January 9, in cooperation with the German naval air authorities in Crimea, and a German seaplane unit based in Varna; of further Russian advances, on January 12; that the Germans are having communications problems with landlines being cut and therefore reconnaissance results are not available for all areas, noting increased pressure for more strategic reconnaissance from the GAF, on January 11, particularly when the weather is favourable; of the adverse situation in the Crimea, describing overwhelming Russian air superiority, on January 11; of the Germans experiencing great problems on their railway supply lines, on January 11; and from the Portuguese ambassador to the Vatican, that the German military command is preparing to leave Rome, from January 9.