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 Allied attacks against German ships and ports in Italy, and problems with shipping out manganese ore from San Stefano, on February 12; and the Prime Minister (PM) comments on the successful Allied raids on San Stefano.