 Air Staff Officer Minoru Genda is chosen to mastermind the operation while his old Naval Academy classmate Mitsuo Fuchida is selected to lead the attack.Meanwhile, in Washington, U.S. military intelligence has broken the Japanese "Purple Code", allowing them to intercept secret Japanese radio transmissions indicating increased Japanese naval activity.Monitoring the transmissions are U.S. Army Col. Bratton and U.S. Navy Lt.