Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/418
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Africa, East Asia, Europe, Latin America, Mediterranean, North America
Countries Cyprus, Germany, Gibraltar, Great Britain, Japan, Malaya, Malta, Russia, Sicily, Switzerland, Togo, United States of America
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges


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; that the Japanese minister in Santiago is to report on the U.S. labour situation, from March 7; and from the Japanese minister in Berne, on the German reaction to rumours of Japanese efforts to achieve a German-Soviet peace, on March 12.


naval intelligence, aerial reconnaissance, convoys, warships, diplomatic intelligence, American war effort, peace proposals, rumours

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