"On This Date in Cryptologic History" Calendar
Poland and Britain signed the Agreement of Mutual Assistance.
26 August 1939: Poland and Britain signed the Agreement of Mutual Assistance.
At Bletchley Park, GC&CS already has a vital insight into Enigma thanks to intelligence sharing with Poland's codebreakers.
Learn much more via the Bletchley Park link below re: "Hut 11A: The Bombe Breakthrough."
