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 West Europe: that Defence Area 4 orders anti-aircraft measures, on April 23; that the battle HQ of the Wehrmacht moves from Zossen to Menz, on April 24; that Kesselring instructs the 12th Army to thrust northeast towards Berlin, on April 24; that Army Group G orders its subordinate to maintain contact with the 12th Army's left wing, on April 23; that Kesselring orders the 19th Army to defend the sector from Guenzburg to Lake Constance, on April 24; and that the 11th Panzer Division is unable to attack due to a lack of fuel and forces, on April 24; on Germany: that a subordination of 300 anti-tank units is to be set up by the navy, on April 23; of six Hitler Youth anti-tank brigades being sent to the 1st and 7th Armies, on April 23; that Army Group G orders the Danube crossings to be prepared for demolition, on April 24; and Armaments Inspectorate 17 reports the crude oil supply is assured for six weeks, from April 20; on South-east Europe: that forces are to be withdrawn from Pola for the defence of Fiume, on April 23; Naval Headlines, covering that the Japanese prepare to leave Rangoon; and from the Turkish chargé in Stockholm, that Sweden is unwilling to become involved in operations in Norway, on April 21.