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 supply of anti-tank guns for the 164th Infantry Division being delayed by the withdrawal of air transport following the transfer of German Air Force (GAF) formations for a new convoy sailing eastwards from Gibraltar on August 18; on the Russian Front: a report for August 20 covering strong Soviet resistance and counter attacks in the Caucasus and on the Leningrad Front; and a summary from the Japanese Ministry of Foreign Affairs of the war situation for its diplomatic and consular representatives on August 11.