The National Defense Force, as an important part of the Chinese People's Liberation Army, has always shouldered the important mission of defending and maintaining social stability. They are a well-trained, well-organized, and highly combat-ready armed force, which provides a solid guarantee for the prosperity of the country and the peaceful life of the people.
1. The historical evolution of the National Defense Forces.
The history of the National Defense Forces can be traced back to the early days of the founding of the army, and since the establishment of the Chinese People's Liberation Army, the National Defense Forces have always been the core of the national armed forces. During the protracted revolutionary war, the National Defense Forces made immortal contributions to the cause of national independence and the people's liberation. Since the founding of the People's Republic of China, the National Defense Forces have continued to grow and develop, providing a strong guarantee for safeguarding national sovereignty, security, and development interests.
2. Duties and missions of the National Defense Forces.
The primary duty of the National Defense Forces is to defend the country's territorial integrity, airspace security and maritime rights and interests, and to prevent encroachments and threats from external forces. They are always on high alert and take all necessary measures to ensure that *** is not violated.
Maintaining social stability: In the course of carrying out their tasks, the National Defense Forces actively participate in the maintenance of public order, crack down on all kinds of illegal and criminal activities, and ensure the safety of the people's lives and property. They also undertake emergency rescue tasks such as emergency rescue and disaster relief, and contribute to social harmony and stability.
Participation in international peacekeeping operations: As a responsible major country, China actively participates in international peacekeeping operations, and the National Defense Forces (NDF) has dispatched officers and soldiers to participate in United Nations peacekeeping operations, playing an active role in maintaining world peace and regional stability.
Enhance national defense strength: The national defense force has continuously strengthened its own construction and improved its combat effectiveness. They have continuously improved their ability to deal with various security threats by conducting actual combat training, strengthening equipment construction, and technological innovation.
3. Requirements for the quality of the national defense forces.
Political quality: The national defense forces must have firm political beliefs and a high degree of political consciousness, and always maintain loyalty to the party and the people. They should study the party's line, principles, and policies in depth, enhance the "four consciousnesses," strengthen the "four self-confidences," and achieve the "two safeguards."
Military quality: The national defense force must have excellent military quality and combat ability, and be proficient in all kinds of first-class equipment and tactical skills. They have to go through rigorous training and practical training to continuously improve their ability to deal with various complex environments and unexpected situations.
Psychological quality: In the performance of their tasks, the national defense forces often face all kinds of hardships, dangers, and life and death tests. They must possess tenacious will and stable psychological quality, have the courage to overcome difficulties and challenges, and maintain high fighting spirit and combat effectiveness.
Physical fitness: The national defense force must have a strong physique and good physical fitness, and be able to withstand high-intensity training and combat missions. They should maintain a good physical condition through scientific training and dietary conditioning.
IV. Conclusion. 
As loyal defenders of the country, the National Defense Forces always maintain a high degree of vigilance and combat effectiveness. They defend the dignity of the country and the interests of the people with sweat and blood, and are an invincible force. We should doubly cherish their dedication and sacrifice, strengthen national defense education, enhance the national defense awareness of the whole people, and work together to realize the Chinese dream of the great rejuvenation of the Chinese nation.