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: a Naval Headlines report for June 6 on Italian and Spanish activity; from the Italian ambassador in Tokyo on Japanese views on Soviet resistance, on June 1; from the Japanese consul in Casablanca on conditions in French Morocco, as of June 2; and from the Japanese ambassador in Berlin on Ribbentrop's views on the progress of the war, as of June 3.