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 Army Group Africa requests the air transport of fuel and ammunition, on March 27; that Kesselring tells Rommel he will use air transport, while the weather precludes sea transport, on March 28; that Rommel asks what has become of the ships with fuel and ammunition, on March 28; that the Chief Quartermaster (QM) of Army Group Africa orders an alternate supply route to be set up, in the event of Gabes dropping out, on March 28; the 10th Panzer Division's reply that a supply route is already in hand, on March 28; that the 7th Panzer Regiment is to join Group Lang, on March 28; a German naval summary for March 28; and Naval Headlines, covering U-boats gathering against convoy HX230.