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 contains a message from C to the Director of Military Intelligence (DMI); and a report on South-east Europe: that the Germans expect landings in western Greece, on July 2; the Prime Minister (PM) tells the Chief of the Imperial General Staff (CIGS) to note the mastery of the guerillas in southern Albania.