In the early morning of October 1, 1949, at Chiang Kai-shek's official residence. The Commander of the Air Force, Zhou Zhirou, had already made several phone calls, but Chiang Kai-shek's response was still "wait a little longer." "Principal, if we don't take off soon, we will not be able to arrive on time," said Zhou. Chiang Kai-shek suddenly stood up and spoke into the microphone: "The mission is cancelled." Zhou Zhirou was greatly puzzled: "Principal, please reconsider. We are well-prepared and guarantee to complete the task."