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: of the 21st Panzer Division's successes on July 24; on the Panzer Army's request for Italian engineer forces and equipment for defensive works, on July 24; and a German Air Force (GAF) operations report and their intentions for July 26; and on the Southern Russian Front: a GAF report on Soviet activity, based on agents, on July 25.