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: a report on the damage done to Sfax by an Allied air attack on December 30; and a report from the Panzer Army under Rommel for December 30; and on the Russian Front: that the withdrawal of the 1st Panzer Army has necessitated the 4th Naval Motor Transport Division to move, on December 30.