Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3082
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Atlantic, East Asia, Europe, Mediterranean
Countries France, Germany, Greece, Holland, Japan, Netherlands, Singapore
Document Type Signals Intelligence
Organisations Government Code and Cypher School
People Hermann Göring


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: that the German Air Force (GAF) are to attack shipping off the Orne because of a build-up for a large-scale attack in the landing area, on July 16; the 2nd Fighter Corps notes intensive Allied preparations for an attack round Caen, on July 15, with the GAF praised for their protection of army supply routes; and of the Air Officer Commanding in Chief (AOC in C) for the 3rd Air Fleet's order for operations, the key-word being HEIDELBERG (the Allied key-word being TANSY), against an expected Allied major attack in the Caen-Tilly sector, on July 16; on South Europe: a 2nd Air Fleet situation report, for July 15, describing air attacks on road and rail communications in north Italy; of the Hermann Goering Division handing over to the 715th Infantry Division, on July 15; of a GAF regiment in Montpellier transferring men to Weimar and East Prussia, on July 15; and correspondence concerning the transfer of the Hermann Goering Division to East Prussia, on July 15; and Naval Headlines, covering Allied preparation for landings in the Mediterranean area and on Guam.


operations planning, German air force, aerial attacks on ships, coastal defence, invasion threat, effects of bombing, aerial attacks, Battle of Normandy, Operation Overlord, military situation reports, Italian Campaign, roads, military dispositions, German army, naval intelligence, German navy, special operations, demolitions, secret weapons, German U-boats, transportation, shipping, Pacific War, amphibious operations

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