In Double Cross, New York Times bestselling author Ben Macintyre returns with the untold story of one of the greatest deceptions of World War II, and of the extraordinary spies who achieved it. On June 6, 1944, 150,000 Allied troops landed on the beaches of Normandy and suffered an astonishingly low rate of casualties. D-Day was a stunning military accomplishment, but it was also a masterpiece of trickery. Operation Fortitude, which protected and enabled the invasion, and the Double Cross system