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: a German Air Force (GAF) Africa report for May 30 and their intentions for May 31; that Kesselring was informed by the Italian Navy that the British fleet in Alexandria is preparing for sea, on May 30; on an instruction to the 10th Air Corps to carry out an air search for Allied ships between Bardia and Tobruk, on May 30; and Naval Headlines.