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: that Kesselring's chief quartermaster calls for very speedy unloading of two ships at Tripoli and promises support to the German Air Force (GAF) at Tripoli, on December 12; on the Southern Russian Front: that the German 6th Army repulses Soviet attacks and receives supplies by air, on December 11; and of fighting in the Caucasus.