Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3692
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Atlantic, East Asia, Europe, Mediterranean, Pacific, South Asia
Countries Germany, Great Britain, Holland, Iceland, India, Japan, Netherlands, Portugal, Russia, Singapore, Spain
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges, Adolf Hitler, Joachim von Ribbentrop


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 Western Europe: of a new battle HQ at Hilversum for Army Group H, on April 8; and on the assigned tasks for units of Army Group H; from the Japanese ambassador in Berlin, detailing talks with Ribbentrop on April 5, saying that Ribbentrop is still in favour of a negotiated peace with the Soviet Union, that Germany is to strike a major blow in the west but will probably be now unable to carry out its planned offensive in the east in May or June, with some talk of the Hesse affair; and that Germany is not to negotiate with the Western Allies, on April 6; from the Portuguese ambassador to the Vatican, regarding the internal situation in Spain, Franco, Don Juan's manifesto, the resignation of the Spanish ambassador in London, and making speculation on future developments, on April 5; and Naval Headlines.


military commanders, German army, diplomatic intelligence, German-Japanese relations, information sharing, Spanish foreign policy, naval intelligence, German U-boats, effects of bombing, air raids, naval bases, German strategy, naval operations, German agents, shipping losses, aerial attacks on ships, Pacific War, Japanese navy, defeatism

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