1944年,一个意外事件震动了英国保安部门。5月下旬,英军最高司令部一位参谋乘火车时,以猜《每日电讯》上的字谜消磨时间。他猜出的第一个谜底竟是诺曼底作战计划登陆点之一的代号“犹他”,第二个谜底是另一个登陆点的代号“奥马哈”。他接着猜下去,诺曼底登陆计划中的重要机密代号陆续出现:有盟军在西北欧战略计划的代号“雹王”;有秘密修建的人工港代号“桑树”;有大举进攻计划的代号“尼普顿”。 In 1944, an accident shocked the British security services. In late May, a staff member of the Supreme Command of the British Army killed time with a crossword puzzle on “Daily Telegraph.” The first mystery he guessed was actually codenamed “Utah”, one of the landing sites for the Battle of Normandy, and the second was “Omaha,” another landing site. He then guessed that important secret codes in the Normandy landing plan appeared one after another: codenamed “Hail King” of the strategic plan of the Allied Forces in Northwest Europe; secretly constructed port of artificial code “Mulberry”; codenamed “ Putton. ”