On this day, 88 years ago, July 27, 1937 (June 20, 1937, the lunar calendar), Mao Zedong and Zhang Wentian emphasized the principle of reorganization of the Red Army. On July 27, 1937, Mao Zedong and Zhang Wentian issued instructions on behalf of the Central Committee of the Communist Party of China on the policy issue of the reorganization of the Red Army, pointing out that the Central Committee decided that the Red Army and the Soviet Area must be entrusted to us with full authority and will never make concessions, but the name of the Red Army's command agency can temporarily make concessions; Candidates cannot give in, and the Kuomintang is not allowed to insert a person. On the 28th, the principle of reorganization of the Red Army was reiterated again. It is stipulated that it will be compiled before August 15 and dispatched to resist Japan on the 20th. Three divisions and above must have a general headquarters, with Zhu De as chief and Peng Dehuai as deputy, as well as a political department, with Ren Bishi as director and Deng Xiaoping as deputy director, in order to command operations. There are 45,000 people in three divisions and 10,000 people in other places. Gao Gang, commander of the security team, and Xiao Jinguang, deputy commander. After the main force is dispatched, concentrated operations must not be divided.