Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/1793
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Atlantic, Europe, Mediterranean
Countries Bulgaria, England, France, Germany, Great Britain, Italy, Sardinia
Document Type Signals Intelligence
Organisations Foreign Office, Ministry of Economic Warfare, Secret Intelligence Service, Security Service, Government Code and Cypher School
People Edward Bridges, Guy Liddell


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 This file includes the following reports on Germany: that signals personnel are being withdrawn from western France to provide increased Radio Direction Finder (RDF) protection, on July 1; on the Russian Front: that Soviet troops are to land in Crimea in order to cut off the Kertsch and Kuban bridgehead, on June 30; Naval Headlines; from the Japanese military attach� in Madrid, a Spanish General Staff report on British preparations to use gas in air raids on Germany, on July 1; from the Chinese minister in Ankara, giving the Turkish view of the Allied strategy, on June 29; from the German Embassy in Ankara, warning of an impending Allied attack on the Dodecanese, on June 20; from the Portuguese minister in Rome, detailing Italian defence measures, on June 30; and from the Portuguese ambassador in London, on the U.K. economy, on July 1.


German air force, radar, personnel, air raid precautions, anti-aircraft defence, Home Front, German agents, intelligence reports, Soviet strategy, Eastern Front, predicting enemy intentions, Italian navy, shipping, diplomatic intelligence, Turkish foreign policy, Italian government, propaganda, Anglo-Portuguese relations

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