Without the extraordinary exploits of Allied code breakers, the outcome of World War II might have been very different. Moving across the world from Bletchley Park to Pearl Harbor and from Mombasa to Melbourne, The Emperor's Codes reveals - for the first time - how Japan's military codes were broken in a whirlwind race between American and British code breakers, explaining step-by-step how they accomplished their daunting task. Drawing on recently declassified files, privileged access to secret official histories and interviews with many of the men involved, Michael Smith has given us an important new story, detailing the hard work and immeasurable dedication of these unsung code breakers, whose extraordinary efforts changed the course of World War II. Includes black and white photos. Soft cover. 323 pages.