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 fronts: a German Air Force (GAF) situation report for October 13; a probable 1st Panzer Army situation report for October 13; a 1st Panzer Army situation report for October 13; a fragmentary German situation report for October 14; a continuation; and that a parachute division is to be withdrawn from the Leningrad sector; on the Southern Russian Front: a situation report for October 13; and a situation report for the evening of October 13; on Eastern Europe: military operations for October 13; on the Moscow Front: a situation report by the 14th Flak Corps; on the Central Russian Front: a XXIII Corps situation report for October 14; a fragmentary German report on operations in the Soviet Union and Yugoslavia on October 11-12; and reports on GAF air attacks on England and RAF operations over Western Europe.