0357

Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/357
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Africa, Europe
Countries Italy
Document Type Signals Intelligence
Organisations Government Code and Cypher School
People Not Defined

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 messages: a query and comment from C on a German estimate of the shipping tonnage entering Tobruk harbour from December 12 to January 15 derived from photo-reconnaissance.

Keywords

photographic reconnaissance, shipping, aerial reconnaissance, German army, ports, military supplies

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