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 Italy: of the steamship Orsini Bottiglieri being destroyed during an air raid on Ancona, a report of March 25; on South-east Europe: of instructions from the Air Officer Commanding (AOC) German Air Force (GAF) Command in the South East to the GAF in Albania on March 27, for the ruthless and dictatorial combing out of aircraft parts in short supply from operational units, these being urgently needed to maximise the production of fighter aircraft, with the operation to be completed by April 12; on the Southern Russian Front: a situation report from the Naval Liaison Officer with Army Group A for March 27, stating that Soviet forces took Voronkovo, south-west of Rabnitsa, and pressed on to the south and south-east, advancing south of Balti; that heavy attacks on the Nikolaev bridgehead were repulsed; and that south of the Dniester Soviet forces are progressing towards encirclement of the 1st Panzer Army; and that the Admiral for the Black Sea has been advised to reduce Odessa's Naval Supply Depot and dockyard capacity by at least 50% as quickly as possible, on March 27; and on Western Europe: of the German ship Christel Vinnen being sunk in an Allied air raid on a convoy off Borkum, on March 29.