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), Mr Loxley and General Ismay, the latter copy being marked as personal for the PM; on Southern Europe: that following the transfer of 2 of its divisions, the 371st to Russia and the 114th to Italy, the 15th Mountain Corps in Yugoslavia was greatly weakened and could not agree to the request for the 2nd Croat Jaeger Brigade to go to a German training area for rest and refit, on January 15; that the 114th Division is to receive personnel from the 371st Division who are not fit for duty on the Russian Front and to exchange them with fit replacements, on January 4; that the Hermann Goering Division is to be transferred to the Western Command from January 20, probably being replaced in Italy by the 114th Division from Yugoslavia; of a shortage of anti-aircraft units on the Italian Front, on January 6; and a detailed report on an Allied air raid on Mostar, from January 14; on the Russian Front: giving details of Russian advances, on January 13; of fierce fighting in Crimea with heavy German losses, on January 14; a German Air Force (GAF) summary for January 14, noting GAF operations being severely hampered by poor weather, and more Russian advances; and a German Army situation report for January 13.