Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3673
Conflicts Second World War
Themes Military Intelligence and Operations, Foreign Policy and International Relations
Regions Atlantic, East Asia, Europe, Mediterranean, Middle East, Pacific, South Asia
Countries Afghanistan, England, Formosa, Great Britain, Holland, India, Japan, Netherlands, Norway, Persia, Russia, Soviet Union, Turkey
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges, Adolf Hitler, Albert Kesselring


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: on tasking for Army Group H from the Commander in Chief (C-in-C) West, on April 3; that Army Group H is short of fuel and ammunition and unable to carry out its assigned tasks, on April 2; and that Hitler orders 6 divisions to assemble in the Hanover - Brunswick area, possibly to form a new army, on April 2; Naval Headlines; from the Japanese ambassador in Hsinking, a message of March 15 from Tokyo, also addressed to the Japanese embassies in Bangkok, Rangoon, Saigon and Hanoi, giving the results of a U.S. Air Force (USAF) heavy bomber raid on Osaka on March 13/14, similar to those on Tokyo and Nagoya; from the Japanese minister in Kabul, a report on conditions in the Soviet Union and future Soviet foreign policy, after talking with the Afghan ambassador in Moscow who had been back on leave in Kabul, on March 25; from the Siamese ambassador in Berlin, on the progress of the war, that Germany could fight for another 6 months, and on differences between the Army and the Nazi Party, on March 29; and from C's representative in New York, on the San Francisco Conference, the President's civil aviation plans, trusteeship for colonial possessions, and that the Bretton Woods agreement was considered unfavourably by the House Banking and Currency Committee.


German strategy, Western Front, military shortages, fuel, German army, military organisation, naval intelligence, tactics, German U-boats, convoys, Battle of the Atlantic, special operations, sabotage, Pacific War, aerial attacks on ships, shipping losses, transportation, Japanese army, evacuation, military bases, effects of bombing, air raids, diplomatic intelligence, conferences, Allied powers, post-war planning, colonies, Soviet foreign policy, Soviet strategy, Battle of Berlin

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