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 German Air Force (GAF) air lifted in 3871 men from April 12-20; a GAF report of April 21; a Panzer Army report for April 21; and the Naval Headlines, covering German operations against Arctic convoys and Italian activity.