0546

Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/546
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Africa, Atlantic, East Asia, Europe, Latin America, Mediterranean, Middle East, North America, South Asia
Countries Brazil, Bulgaria, Burma, China, France, Germany, Gibraltar, Great Britain, India, Indochina, Italy, Japan, Liberia, Norway, Romania, Switzerland, Thailand, Togo, Turkey, United States of America, Yugoslavia
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges, Joachim von Ribbentrop, Franklin Delano Roosevelt

Description

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: a German naval report of attacks on convoys PQ11 and PQ15, from May 3; that a conference has been arranged to discuss a combined operation against the desert railway, on May 4; the Naval Headlines, covering operations against convoy PQ15; a Japanese Foreign Ministry circular regarding propaganda arising from an 'enemy' air raid, on April 27; the Japanese ambassador in Ankara relays a report from Delhi on the Indian situation, on April 28; that the French ambassador in Peking warned the Japanese of Chinese forces massing on the frontier of French Indo-China, on April 28; on Japanese proposals to Germany on spheres of leadership, on May 1; on Japanese plans for India, on May 1; the Turkish Ministry of Foreign Affairs relays the U.S. minister's views on the Indian situation, on April 27; the Turkish minister in Ankara reports depression in Germany and hunger in Italy, on April 29; the Turkish charg� in Madrid reports hints of Axis designs on Turkey, on April 30; and a report of German troop ships sailing bound for Norway, on April 30; this was queried by the Prime Minister (PM); included is a reply by the First Sea Lord (ISL) (see also 9352).

Keywords

naval warfare, Arctic convoys, German navy, Royal Navy, warships, shipping losses, German U-boats, operations planning, aerial attacks, railways, Desert War, Italian navy, shipping, diplomatic intelligence, press reports, bombing, air raid precautions, imperial defence, Sino-Japanese War, Axis strategy

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