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 the 10th Air Corps is to attack Capuzzo on May 4-5; that Kesselring was informed of the state of readiness of French Air Force units and Flak units in unoccupied France, on May 3; a report of an RAF raid on Argenteuil, on April 29-30; and that horses are to be transported from central Europe to Ukraine, between May 5 and 14.