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 South Europe: that the Germans withdraw from Civitavecchia and demolish the harbour, on June 7; that Kesselring adjusts the situation by withdrawing forces, but that the situation can only be eased by strong German Air Force (GAF) fighter and ground-attack reinforcements, on June 5; and that the 362nd Infantry and 5th Mountain Divisions are to withdraw, on the night of June 6-7; Naval Headlines, covering the naval reaction to the Normandy landings; from the Japanese ambassador in Berlin, that Hitler and the ambassador reviewed the future war strategy, on June 3 - the Prime Minister (PM) says that Field Marshal Smuts is to see this; and forwarding German information on the new Bulgarian cabinet and U.K.-U.S. friction over both Spain and de Gaulle, on June 2; from the Siamese minister in Berlin, describing a petrol shortage, and Germany's loss of the air war, on May 31; and from the Turkish military attaché in Budapest, detailing air raids on Hungary, on June 3.