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 Southern Europe: of the destruction of the HQ of a German Air Force (GAF) bomber unit in Sicily, on June 9; Naval Headlines; the Minister of Foreign Affairs in Tokyo surveys the war situation, on June 4; on Western Europe: two reports detailing GAF crashes, on June 3 and 4; the PM asks for the Chief of the Air Staff's (CAS's) interpretation with the CAS's reply.