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 Western Europe: of an appeal by the Commander of German Air Force (GAF) fighters in the west calling for an all-out effort by pilots, on January 25; and on a re-arrangement of command, involving the 5th, 6th and 7th Panzer Armies, on January 20; on East Europe: that the evacuation of Koenigsberg was ordered, on January 24; and on East and south-east Europe: that Reich minister Speer gave instructions on returning goods when evacuating, on January 19.