Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3329
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Atlantic, East Asia, Europe, Mediterranean, North America
Countries Brunei, China, Denmark, Finland, France, Germany, Great Britain, Holland, Luxembourg, Netherlands, Norway, Poland, Russia, Spain, United States of America
Document Type Signals Intelligence, Maps
Organisations Foreign Office, Security Service, Government Code and Cypher School
People Edward Bridges, Adolf Hitler, Franklin Delano Roosevelt


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: that German Air Force (GAF) reconnaissance of Allied concentrations and movements in the Metz area is to be carried out even in bad weather, on November 18; a Department of Foreign Armies West appreciation, from November 13; of a warning being issued of the immediately expected appearance of strongish German fighter forces in western Germany and the area near the front, on November 18; and that Himmler orders defensive positions in northern Holland to be prepared, on November 12; Naval Headlines; from the Japanese minister in Madrid, on Spain and the Allied powers, on November 12; from the Chinese ambassador to Poland, in London, regarding the Polish question, on November 15; and the Vice Chief of the Imperial General Staff's (VCIGS's) written response plus a map, on November 18, to the Prime Minister's (PM's) query on an extract from a Naval Headlines report.


adverse weather conditions, Western Front, German air force, aerial reconnaissance, predicting enemy intentions, Allied strategy, military operations, military strength, German strategy, defence, occupied Netherlands, naval intelligence, German morale, German navy, shipping losses, naval warfare, Royal Navy, aerial attacks on ships, demolitions, ports, Pacific War, Japanese navy, submarines, convoys, diplomatic intelligence, Spanish foreign policy, Polish government, Anglo-Greek relations, German army, occupied Norway

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