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 102, containing routine information on German, Italian and Spanish activity. This file also contains reports from the Japanese ambassador in Washington on Roosevelt's speech on September 11 and virtual declaration of war on the seas; from the Japanese chargé in London giving a summary of the situation: that British confidence is rising with Soviet involvements in the war, but Churchill warns of the need for vigilance; that Wavell is to prepare joint U.K.-Soviet operations in the Caucasus; that the British Army has recovered from Dunkirk; and of anti-Japanese feeling; from the Japanese ambassador in Turkey on talks with von Papen; that a German victory is expected at Moscow; that Turkey is pleased to see her long-standing enemy, the Soviets, being destroyed and making no further commitments to Great Britain; that von Papen is looking for Japanese participation in the war with the Soviets; from the Turkish ambassador in Washington about the State Department's and Britain's concern at Soviet propaganda amongst Americans in northern Iran; and that President Roosevelt's attempts to portray the Soviet Union as allowing freedom of conscience have produced a reaction from churches and Congress.