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 Panzer Army is to be alert for night attacks, on September 18; Naval Headlines, covering attacks on Arctic convoys and an arrival at Tobruk; and messages from the Japanese minister in Sofia, giving German information on the U.S.'s presence and influence in the Middle East, on September 14; from the Japanese minister in Istanbul, on a visit of a U.S. special representative to Turkey, on September 14; and from the Turkish ambassador in Tokyo, giving Spanish information that Japan has no military intentions against the Soviet Union, as of September 17.