Operation Primrose: U110, the Bismarck and the Enigma Code

ISBN-13: 9781517155810 / Angielski / Miękka / 2015 / 108 str.

David Boyle

Opis

The capture of a working Enigma coding machine from the sinking U110 in May 1941, the pursuit of the battleship Bismarck later the same month, and the reason why British naval cryptographers won stole a march - when their own naval code had been cracked by the other side.