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 Southern Europe: battle reports from the beach-head, on March 8; on the Russian Front: the 4th Panzer Army's detailed report for March 7; Naval Headlines; from the Turkish ambassador in Vichy, describing a conversation with Laval, on March 2; from the Portuguese minister in Ankara, detailing an interview with von Papen, on March 6; and from the Ministry of Foreign Affairs in Berlin, on Finnish-Soviet negotiations, on March 4.