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 Germany: of the allocation of voluntary assistants (foreigners) to German Army divisions, this marking the first mention of 5 divisions, on January 22; Naval Headlines, covering U-boat activity; from the German Ministry of Foreign Affairs to all posts, detailing a Luftwaffe attack on London on the night of February 13-14; from the Spanish minister in Helsinki, noting Finland's grave military situation, as of February 20; and reports on Berlin: of air raids on December 15 and February 8; and giving general information for the period from mid-December - February 8.