In the end of November 1948, the Central Committee of the Communist Party of China (CPC) for the prevention of Chiang Kai-shek's and Jin-tung's army's southern withdrawal, strengthened its Yangtze River defence line, further clearly put forward a policy for the detention and extermination of the Pyeongchang Army in the northern region, and decided to initiate the Pyeongchang War in mid-November 1948, the Central Committee of the Communist Party of China for the prevention of Chiang Kai-shek's and Jin-tung's army's southern withdrawal, further put forward a policy for the detention and extermination of the Pyeongchang Army in the northern region, and decided to initiate the Pyeongchang War in mid-November 1948,