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: Naval Headlines; from the Japanese ambassador in Rome, describing the situation in Italy, as of June 5; and from the Japanese ambassador in Berlin, on the war situation, as of June 9; and noting remarks made by Gottfriessen, on June 10.