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 Germany: a report on German Air Force (GAF) training difficulties due to a shortage of aircraft, on June 26; on Southern Europe: of an Allied air raid on Leghorn, including the devastation of railways, on June 28; of damage caused to the GAF in an Allied air raid on Alghero, on June 28; of orders for a bombing attack on an unspecified target in the Mediterranean on the night of June 29; that advance arrangements are to be made for the destruction of all Sicilian ports, on June 29; that a small fighter unit is to move from Germany to Italy, on June 29; that heavy anti-aircraft reinforcements left Germany for Reggio on June 24; that the 7th Army Corps HQ orders preparations to be made for the destruction of Corsican ports, on June 29; of the first reference to units of the SS Assault Brigade Corsica, on June 28; of Italian troop reinforcements to Rhodes, on June 27; that stores of cleaning produce for personnel to cover to the end of 1943 are being stock-piled due to predicted transport difficulties, on June 27; that 13 tanks were loaded at Leghorn en route to Sardinia, on June 29; of a demand for fighter protection for air transport to be restricted, on June 29; and on communists and partisan forces in Yugoslavia, on June 27; on the Russian Front: of operations by the 4th Air Fleet for June 28; Naval Headlines; from the Portuguese ambassador in London, on Eden's views of the Lisbon negotiations, on June 28; from the Japanese minister in Berne, on the war situation, as of June 23; from the Japanese minister in Madrid, describing an interview with Foreign Minister Jordana, on June 25; on South-east Europe: that Croatian sailors are to be recruited in to avoid giving rise to anti-Italian propaganda, on June 27; on Northern Europe: that fighter-bomber aircraft in Finland are being fitted with tropical equipment, on June 27; and on the Russian Front: a situation report.