Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3583
Conflicts Second World War
Themes Military Intelligence and Operations, Weapons Technology and Nuclear Warfare
Regions Africa, Atlantic, East Asia, Europe, Latin America, Mediterranean, North America, South Asia
Countries Bulgaria, England, Finland, France, Germany, India, Italy, Japan, Mexico, Poland, Principe, RĂ©union, Romania, Soviet Union, United States of America
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges, Archibald Clark Kerr, Charles de Gaulle, Adolf Hitler, Desmond Morton, Franklin Delano Roosevelt, Josef Stalin


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 West Europe: of German Air Force (GAF) operational orders for March 9; and that surveys for the construction of flying bomb launch sites are to be carried out on Reich territory because of the increased range of the bombs, on March 5; Naval Headlines; from the Japanese Minister for Foreign Affairs to the ambassador in Moscow, instructions to open negotiations with the Soviets on a treaty, on March 5; from the French ambassador in Moscow, describing a conversation with Mr Harriman on France's exclusion from Yalta and the allocation of an occupation zone in Germany; and on U.S.-Soviet negotiations on the San Francisco Conference, on March 3 and 4; and from the German Ministry of Foreign Affairs, on the Yalta Conference and the future of Germany, from February 19.


predicting enemy intentions, Allied strategy, operations planning, Crossing of the Rhine, military organisation, bombing, secret weapons, missiles, rockets, naval intelligence, public statements, military commanders, German navy, shipping losses, warships, aerial attacks on ships, naval bases, torpedo boats, Pacific War, convoys, amphibious operations, Allied powers, diplomatic intelligence, Soviet foreign policy, French government, prisoners of war, Polish government, Yalta Conference

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