Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence

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 Italian activity; from the Italian ambassador in Berlin on the Japanese view of the U.S.S.R., on March 11; the Italian air attaché reports on Japanese intentions against northern Australia, on March 4; from the Japanese minister in Sofia, on a forthcoming German offensive in the U.S.S.R. and the future of the Stalin regime, on March 8; from the Japanese ambassador in Buenos Aires, allegations of Japanese military atrocities, on March 11; on Turkey, a report from Stockholm of Swedish and Finnish unease at Cripps' statement on the U.S.S.R.'s post-war frontiers, on March 14; from the Japanese ambassador in Berlin, on Germany's Spring offensive and internal conditions in Germany, on March 12; on Japan: that because of food shortages Tokyo seeks rice from Indo-China and Thailand, with shipping allocated, on March 7 (the Prime Minister (PM) tells the First Sea Lord (1SL) to pass this information to U.S. Admiral King); and a message from the 1SL to the PM confirming the above, on March 16.