National security is the bedrock of national rejuvenation, and social stability is a prerequisite for building a strong and prosperous China. The report to the Twentieth National Congress of the Communist Party of China (CPC) profoundly clarified the specific contents, objectives and tasks of the national security system in the new era, and required unswervingly to implement the overall concept of national security, put the maintenance of national security throughout all aspects of the work of the Party and the country, ensure national security and social stability, and make a comprehensive deployment to promote the modernization of the national security system and capabilities, and maintain national security and social stability. The officers and soldiers of the whole army should fully understand the extreme importance and realistic urgency of safeguarding national security, deeply understand the role of national defense and military building in the overall national security strategy, enhance their awareness of hardship, adhere to the bottom line thinking, make solid preparations for military struggle, and truly shoulder the sacred mission of safeguarding national security. National security is the basic premise for the survival and development of a country and an important cornerstone for the stability of the country. National prosperity and people's security are the most basic and common aspiration of the people, and also the most fundamental and important well-being of the people. Maintaining national security is the fundamental interest of the people of all ethnic groups in the country. To realize the Chinese Dream of the great rejuvenation of the Chinese nation and ensure that the people live and work in peace and contentment, national security is a top priority. Without security and stability, nothing can be said. As President Xi emphasized, "At present, China's national security is richer in connotation and extension than at any time in history, broader in space and time than at any time in history, and more complex in internal and external factors than at any time in history. We must adhere to the overall concept of national security". National security has been comprehensively strengthened. The social governance system of jointly building, jointly governing and sharing has been further improved. Ethnic separatist forces, religious extremist forces and violent terrorist forces have been effectively curbed. The special fight against crime has achieved phased results. A series of major natural disasters have been effectively addressed, and China's construction of peace has reached a higher level. "A wise man can prevent disasters before they happen, and a wise man can hope for the future." At present, the great changes that have not happened in the world for a century are accelerating. The COVID-19 has a profound impact on the international pattern, and the uncertainty and instability of China's security situation are increasing. At a new historical starting point, we must take people's security as the purpose, political security as the foundation, economic security as the foundation, military science, technology, culture and social security as the guarantee, and international security as the basis, coordinate external and internal security, homeland security and national security, traditional and non-traditional security, self security and common security, and maintain and shape national security as a whole, We will consolidate the grassroots foundation for national security and social stability, improve the mechanism for participating in global security governance, build a higher level of safe China, and safeguard the new development pattern with a new security pattern. We must improve the national security system, enhance our ability to safeguard national security, improve public security governance, and improve the social governance system. "The army does not