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 the 4th Air Fleet's intentions for October 7, to support the 11th Army and 1st Panzer Group and prevent the evacuation of Soviet forces from Berdyansk; that Group Von Schwedler was opposed by stubborn Soviet resistance west of Kharkov; that Soviet forces are retreating eastward to avoid encirclement north of the Sea of Azov; of the 7th Air Division on the northern part of the Russian Front; that the 1st Panzer Group has been renamed the 1st Panzer Army on October 7; on the operational orders of the 4th Air Fleet on October 7: to support the 11th Army and 1 Panzer Army advances and the 6th Army attack on Kharkov; that Novorosiisk harbour is to be mined; that Berdyansk was captured by the 11th Army, the 1st Panzer Army is pushing on towards Maryupol, and the 6th Army is attacking in the direction of Kharkov; that German fighter aircraft have moved forward to Yukhnov, in the central region of the Russian Front; that the 18th Panzer Division entered Bryansk on October 6; that the Germans reported Soviet operational signal deploying forces to the rear of Panzer troops on October 6; a situation report on October 7 indicating fighting and a German breakthrough of the 7th Panzer Division north of Vyasma; an operational report on the central section of the Russian Front on October 6; that Admiral Schulter is flying from Berlin to Sofia on October 8, on a special task of the supreme command of the navy; and that Air force personnel on leave from Libya were to return immediately on October 1.