The Secret History of Signals Intelligence in the World Wars
by
Peter F. Matthews
Language: English
Release Date: September 2, 2013
From MORSE to ENIGMA, ULTRA to PURPLE, Room 40 to Bletchley—the story of secret signals in both of the World WarsCommunicating in the chaos of war is complicated, but vital. Signals intelligence makes it possible. In World War I, a vast network of signals rapidly expanded across the globe, spawning...