On this day, 44 years ago, on September 19, 1981 (August 22, 1981 lunar calendar), Deng Xiaoping reviewed the North China military exercise. Deng Xiaoping reviewed the exercise troops after watching the military exercise held by the troops in a certain place in North China. On September 19, 1981, Chairperson of the Central Military Commission Deng Xiaoping delivered a speech during the review of the military troops in a certain place in North China. He pointed out that the people's army created by the Communist Party of China and armed with Mao Zedong Thought has combat effectiveness in military and political quality. We fully believe that with such a good army and the support of the people, we will be able to defeat any aggressor. He said that the Chinese People's Liberation Army is a strong pillar of the people's democratic dictatorship and shoulders the glorious mission of defending the socialist motherland and safeguarding the construction of the four modernizations. Therefore, it is necessary to build the Chinese People's Liberation Army into a powerful, modernized and regularized revolutionary army. To this end, he demanded: (1) We must adhere to the four basic principles, strengthen political and ideological construction, and strive to make the army a model for implementing the party's line, principles and policies. (2) We must improve weapons and equipment on the basis of the continuous development of the national economy, and accelerate the modernization of national defense. (3) We must further strengthen military-civilian and military-civilian relations, strengthen internal unity in the army, strengthen the construction of the militia, and inherit and carry forward the glorious tradition of the people's army. (4) We must strengthen military and political training, further improve the military and political quality of the army, and strive to improve the ability of all branches of the military to cooperate in combat under modern conditions. ( 5) We must be modest and prudent, guard against arrogance and impatience, and further carry out the "four has, three stresses, and two fears" (that is, having ideals, morality, culture, and discipline, talking about military appearance, courtesy, hygiene, not being afraid of hardships, and not being afraid of bloodshed). Strengthen the cultivation of work style, so that the troops have strict discipline. (6) We must make solid preparations for anti-aggression wars, and make new contributions to safeguarding world peace, safeguarding the security of the motherland's territory, and striving for Taiwan's early return to the motherland and realizing the sacred cause of the motherland. A military exercise under modern war conditions held somewhere in North China