Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence

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 North Africa: that bomber aircraft are to transport fuel to Tripoli on December 26; that the German Air Force (GAF) has enough fuel for two operations only and needs fuel to combat southern enveloping movements, on December 26; and that an attack on Pichon by Axis forces is intended from December 27.