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 Russian Front, on November 12, heavy snow and extreme cold are hampering activities on all fronts; that a sabotage expert is due in Tripoli on November 11; that German forces in North Africa are preparing tank bridges and ladders on November 12; that the Italians are demanding the return of diesel fuel lent to the German Air Force (GAF), Africa; that elements of German forces travelling in a destroyed convoy are regarded as a total loss, from November 12; Naval Headlines, covering orders to U-boats in the Mediterranean on the sighting of the British Fleet; that the Admiral Scheer is still in the Baltic to exercise with Liepzig; that the Chinese appealed for Australian support against an impending Japanese attack on Yunnan, on November 10; an Italian report on U.S.-Japan negotiations, on November 10; a Japanese report of a meeting with a U.S. admiral in Washington on October 16; and a Japanese assessment of the Soviet-German war, on November 6.