Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence

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 Tunis Air Corps is anxious to avoid weakening its fighter forces at this critical time, on March 18; the Tunis Air Corps' report for March 18, noting little Allied activity; and that defensive operations are to be the main task of the German Air Force (GAF) in northern Tunisia on March 19; and on the Russian Front: of more Axis successes, on March 18.