Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3616
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Atlantic, East Asia, Europe, Mediterranean, North America, South Asia
Countries China, Holland, India, Indochina, Japan, Netherlands, Siam, Singapore, United States of America
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges, Adolf Hitler, Desmond Morton


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 the Commander in Chief (C-in-C) West orders the use of the 18th and 167th Divisions in the Remagen bridgehead, on March 17; that Oberkommando der Wehrmacht (OKW) considers an Allied penetration, on March 17; that Hitler orders a company of Tiger assault guns to be employed at the point where the Reich motorway borders the main defence line, on March 17; an appreciation of Allied intentions by the Supreme Command of the Navy, on March 16; and of orders from Army Group G that all Rhine bridges are to be provided with demolition charges, on March 16; Naval Headlines; from the Minister of Foreign Affairs in Tokyo, detailing air raids on Tokyo and Nagoya, on March 13; and noting Siamese support for Japanese measures in Indo-China, on March 14.


German strategy, Western Front, military dispositions, predicting enemy intentions, Allied strategy, counter-attacks, tanks, German army, French army, military strength, demolitions, naval intelligence, German U-boats, naval operations, German navy, infiltrating foreign countries, German agents, Pacific War, military operations, Allied powers, military organisation, Japanese navy, convoys, shipping losses, submarines, air raids, effects of bombing, housing, casualties, French armed forces, colonies, disarmament

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