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: an Army Group Africa report of April 7, describing the penetration of the 5th Panzer Army, and that the Italian 1st Army and the Africa Corps were forced to retire; and an Army Group Africa day report of April 7; Naval Headlines; a message from General Montgomery to the Prime Minister (PM), noting that Sfax was captured, on April 10; and a note from the Chief of the Imperial General Staff (CIGS) (not included).