It was one o’clock in the morning of December 8, 1941. Peng Leshan, the head of the radio office of the Ministry of Information’s International Department in Chongqing, was waiting in front of the wireless receiver in his office to pick up news updates from contacts in Los Angeles. Suddenly a message came through his headphone—the Japanese army had attacked Pearl Harbor. The United States would wage war against the Japanese Empire. Alone in the office, he wondered whether the news was true or whether he had simply misheard it on account of his fatigue. Hesitating to report it to his superior Hollington Tong, vice minister of information, he decided to reflect on what he had heard before dialing Tong’s number. Around four o’clock, the phone at Chiang Kai-shek’s mansion rang—Tong reported the attack on Pearl Harbor to Chiang....