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, covering German and Italian activity; from the Turkish chargé in London, on a need for Anglo-Russian understanding, on March 8 (the Prime Minister (PM) sent this to Mr Eden); and from Portugal: Lisbon reports continued Australian resistance in Timor, on March 11.