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 Southern Europe: of a message of 2100 on June 19 ordering a state of emergency, which was corrected 2 hours later to a state of vigilance; on the Mediterranean: on a German Air Force (GAF) attack against Allied shipping in the harbour at Djidjelli, on June 17; on the Russian Front/Italy: of 2 GAF operational commands moving from southern Russia to northern Italy as at June 19; the Prime Minister (PM) annotates this summary asking, how many planes?, the apparent reply was 600-750; on the Russian Front: a report of Axis air operations over southern Russia on June 18/19; Naval Headlines; from the Japanese minister in Bucharest, giving a minister's detailed views as of June 14 on the likely future progress of the war, including the possibility that if the Soviet Union was victorious she would overrun Europe to the dismay of England and America, and also his views on the likely future relationship between the Soviet Union and Japan; and from the Portuguese ambassador in London, a report of June 19, see 3623.