Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/442
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Africa, East Asia, Europe, Mediterranean, Middle East, South Asia
Countries Egypt, England, Germany, Great Britain, India, Italy, Japan, Malta, Russia, Soviet Union
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges, Josef Stalin


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 the Mediterranean: a German Air Force (GAF) report of attacks on a cruiser formation on March 23; the GAF report the continuation of an attack on a cruiser formation on March 23; on North Africa: a GAF report of an RAF attack on Martuba on March 23; from the Japanese minister in Sofia, a corrupt telegram on Russian losses, from March 12; from the Japanese minister, on Bucharest's optimistic view of the war situation on March 11; and from the Italian minister in Hsinking on the Japanese ambassador's mission to the U.S.S.R.


aerial attacks on ships, German air force, Royal Navy, Royal Air Force, aerial attacks, airfields, Desert War, diplomatic intelligence, invasion of the Soviet Union, American war effort, industry

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