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 the Ground Officer Commanding (GOC) in Chief of the Panzer Army considers the situation critical because of ceaseless Allied air attacks, and requests additional German Air Force (GAF) air support, on October 28.