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 advanced battle headquarters of the 5th Air Corps at Mariupol from November 3; two hundred lorries and trailers are to be airlifted to North Africa with air cover to be provided by the 10th Air Corps; a report by the German Air Force (GAF) in Benghazi on an RAF raid, from November 13; of the 10th Air Corps relaying Hitler's orders banning air raids on Cairo, on November 13; that the 10th Air Corps is unable to receive additional transport detachments because of the critical transport situation on the Eastern Front, on November 13; details of the cargoes of the San Marco and Duisburg, sunk by cruisers on November 8; of an RAF raid on Derna and Mellaha on November 12-13; and of GAF raids on British North Africa targets.