Cipher Bureau (Poland) (category Signals intelligence agencies)
In 1967 the Polish military historian Władysław Kozaczuk, in his book Bitwa o tajemnice (The Battle for Secrets), first revealed that the German Enigma...
57 KB (6,907 words) - 22:10, 25 July 2024
(1): 19–25, doi:10.1080/0161-118291856740 Kozaczuk, Władysław (1967), Bitwa o tajemnice: Służby wywiadowcze Polski i Rzeszy Niemieckiej 1922–1939 [Secret...
72 KB (8,830 words) - 16:30, 10 June 2024