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: the 2nd Parachute Corps from St Lo to the Caumont sector assesses that the superiority of the German troops over the U.S. troops is being eroded by U.S. artillery superiority, noting the need for mortar and artillery ammunition, on July 1; and that the 86th Corps expects a British attack and urgently requests air reconnaissance east of the Orne, on July 2; on South Europe: of the 51st Mountain Corps' line; that the 278th Infantry Division brings up 60 tanks; that the HILDEGARD (WRANGLER) line was substituted for the PINPRICK line, on July 2; and that trains carrying the whole of the 34th Infantry Division and parts of the Wildflecken and Ostpreussen divisions arrive in Italy, on June 29; on Germany: that Goering's appeal for volunteers for defence of the Reich applies also to bomber crews, on July 3; Naval Headlines; from the Siamese minister in Berlin, stating the British dismiss the effect of German flying bombs, on June 28; from the Portuguese minister in Tokyo, relating Japanese anxiety at the Allied progress, on June 29; and from the Portuguese chargé in Berlin, describing a Berlin air raid on June 21.