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: of the removal of non-mobile flak forces from the areas of Pistoia and Spezia to defend the area from Gabes-Matmata-Ketana, on March 23; and that General Mannerini is to maintain the newly set-up defence line, on March 23.