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: a German report for November 24; another German report for November 24; and a 2nd Army report for November 24; Naval Headlines, covering Italian shipping activity; and from Japan a report on negotiations with the U.S., on November 20.