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 Russian Front: that the 4th Air Fleet is to support the 17th Army north east of Tuapse, easing and delaying the action near Stalingrad; and that the 8th Air Corps is to support a defensive battle of the 6th Army and the 4th Panzer Army in the northern part of Stalingrad on October 13.