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: Naval Headlines, covering the Germans, Italians and Spanish including Russian Front activity; from the Turkish ambassador in Vichy on French industrial cooperation with Germany, on June 1; from the Turkish ambassador in Washington, on U.S.-Soviet discussions on a second front and post-war boundaries on June 1; from the French minister in Lisbon on Japanese war intentions from May 8; and comments from the Prime Minister (PM) and Foreign Secretary.