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 Eastern Europe: a situation report from the Naval Liaison Officer with Army Group A for December 21, noting that Novgorodka and Bigdanovka have been recaptured, and tough Soviet resistance near Korosten; on Italy: a report from the 26th Panzer Division for December 21 anticipating a strong Allied attack on the village of Arielli and on the left wing; that the 305th Division is being relieved in the central sector according to plan; the 14th Panzer Corps reports continuing Allied pressure on the rearguards of the 44th Infantry Division; of harassing Allied artillery fire on the right wing of the 76th Panzer Corps; of fighting in progress following four Allied attacks supported by tanks; that the 2nd Air Fleet is to support defensive operations of the 10th Army with the main weight of support in front of the left wing of the 76th Panzer Corps; a ground situation report for December 22, describing an exchange of artillery fire in the area of the 14th Panzer Corps; continuing pressure on the rearguards of the 44th Infantry Division; the Allies attacking with tank support on the left wing of the 76th Panzer Corps; and an Allied attack on the southern edge of Ortona being repulsed; on South-eastern Europe: of Allied air activity, with a convoy attacked in the sea area east of Kythera and seven vessels sunk; and of orders for the demolition of landing areas at Zara-Nadin and Zemonico, on December 22; on the Adriatic: that the cruiser Niobe has broken into two parts, and is to be blown up after a salvage operation, on December 22; from the Japanese Home Office Representative in Berlin, describing the effect of Allied air raids on Berlin, on December 16; and a general air situation report for December 22, detailing tactics involved in a bomber raid on Bremen by the 8th U.S. Air Force; air raids on Frankfurt and Mannheim; and air raids on Athens and Sofia.