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 Southern Europe: an intelligence summary for June 21, giving details of guerrilla activity in Greece, Yugoslavia and Albania, with that in Greece considered to be a prelude to an Allied landing; that extensive oilfield fires continue in Romania, possibly caused by sabotage, on June 23; a German Air Force (GAF) intelligence summary for June 23, giving reconnaissance results and more on the oilfield fires in Romania; a detailed breakdown of German and Yugoslav losses during the Axis Operation SCHWARZ in Yugoslavia, totalling some 2800 Germans, 12-13000 communists/partisans and some 3800 Chetniks; a detailed summary of GAF missions in Operation SCHWARZ, from May 15-June 16; and of Axis problems on the supply routes to Greece, on June 22; on the Mediterranean: of the movements of the Hermann Goering Division to Sicily via the Messina Straits, on June 21/22; that Kesselring reiterates his order for GAF dispersal and concealment on Sardinia, on June 22; that the GAF are to escort a particularly valuable German convoy from Naples to Sardinia, on June 23; and of the results of an Allied air attack on Olbia on the night of June 22/23; and on the Russian Front: that all was generally quiet on June 22.