1, we should always establish the concept that national interests are above everything else. National security involves all aspects of national social life and is the primary guarantee for the survival and development of the country and the nation. Science and technology have no national boundaries, but intellectuals cannot live without their own motherland. Therefore, putting national security first is the need of national interests and personal safety, and it is also the unanimous appeal of all countries in the world.

2, familiar with activities and regulations related to national security. We should know what is legal, what is illegal, what we can and cannot do. Among them, we should be particularly familiar with the following laws and regulations: constitution, national security law, secrecy law, criminal law, criminal procedure law, scientific and technological secrecy regulations, and rules for international students. Be willing to learn, be brave in asking questions and be cautious about problems with unclear legal boundaries.

3. Be good at identifying various disguises. In foreign exchanges, it is necessary to be warm and friendly, but also to be different inside and outside, neither humble nor supercilious; We should not only cherish personal friendship, but also bear in mind national interests; We can win all kinds of help and funding without losing our national dignity and personality. Camouflage is difficult to identify and easy to identify. The key is to be indifferent to fame and fortune. Those with ulterior motives should be promptly reported and cracked down according to law, and they should never be allowed to act arbitrarily.

So how to contribute to national defense construction, we should strive to do the following:

1. At present, peace and development are still the themes of the times. National defense consciousness is a concentrated expression of consciously safeguarding the interests of the nation and the country, and a comprehensive embodiment of the national spirit and quality. Contemporary college students should first seriously study and master basic military theoretical knowledge, establish a correct concept of national defense, and understand the significance of our national defense construction.

National defense construction is an important guarantee for national security, a prerequisite for national independence and resistance to foreign aggression, and an important guarantee for China's socialist construction and national prosperity and development! National defense and army building play an important role in the overall layout of Socialism with Chinese characteristics's cause. Contemporary college students must stand at the height of national security and overall development strategy.

2. Concerned about national affairs and the international situation. At present, the international situation is more complicated. In particular, the United States-led western forces constantly provoke China, the South China Sea crisis, South Korea's deployment of "Sade", Japan's conspiracy to make trouble, and Vietnam's unpredictable moments have all brought us unstable factors. These incidents pose a threat to China's sovereign independence, territorial integrity and national defense security.

Only by constantly paying attention to national and international events and the development of China's national defense construction and constantly improving their political and military acumen can contemporary college students clearly understand the overall situation, find out what they should and can do, and make their own contributions to China's national defense construction according to their own abilities.

3. Modern warfare is a high-tech information warfare, which is the concrete embodiment of a country's comprehensive strength. National defense construction needs the support of the country's political, economic, scientific and technological, cultural, military, diplomatic, natural and other comprehensive forces, and national defense construction also highlights the construction of compound forces.

Only when contemporary college students keep in mind our national defense mission, study hard, learn scientific and cultural knowledge, become professional talents, constantly improve their own quality and ability, and apply all kinds of knowledge they have mastered to the practice of improving national defense ability, can they truly live up to the cultivation of the country and make China invincible in the fierce international competition.

4. "Practice is the only criterion for testing truth". In response to the call of the state, military service is the obligation and responsibility of every school-age youth, and college students with high knowledge level should be at the forefront of the times.

Contemporary college students are excellent groups with advanced scientific and cultural knowledge and high quality. They should respond to the call of conscription with full enthusiasm and ability, enlist in the army and devote themselves to national defense construction.

With the advent of the information age, information-based high-tech war will become the main form of future war. We college students should make full use of their high academic qualifications, learn the military well, improve the overall quality and combat effectiveness of our army and enhance the national defense strength.