The above characteristics of high-tech war have had a revolutionary impact on the military. It is necessary to carry out profound reforms in national strategy, national defense economy, national defense science and technology and military production, military thinking, war style and mode, army building and management, war preparation, strategy and tactics, and rear support. The emergence of high-tech war forces people engaged in war to re-examine some traditional concepts, theories and principles, and re-evaluate previous strategies, policies and some specific practices. (1) Impact on national security strategy Under the condition of high-tech war, it is far from enough to consider only the nuclear threat and nuclear protection strategy from the perspective of maintaining national security. Space strategy (or cosmic strategy) will become an important part of national strategy. The high-tech level of a country is an inseparable part of its deterrence. National security depends not only on the necessary conventional weapons and nuclear weapons, but also on high-tech weapons. (II) Impact on national defense economy The development of high technology requires a high-level national defense economy, and the state should support the development of high-tech weapons with considerable funds. This is one aspect. On the other hand, many military high technologies are inseparable from the development of national science and technology, such as some weapons and equipment used in outer space, which are of great benefit to the development of cosmic resources and earth resources. At the beginning, it needs national economic input, but it will soon benefit and promote the development of the national economy. The foundation of high-tech war is high technology. To develop high technology, it is not enough to rely only on limited national defense funds, but also need the support of the whole national defense economic system. Moreover, money is not the only condition. National defense technicians and national defense technical facilities should adapt to the development of high technology. In order to develop high technology, it is necessary to mobilize the cutting-edge technical forces of the whole country, not just military technical forces. Capital and technology are the essential material basis for the development of high technology. (III) Influence on the Style and Mode of War The use of high-tech weapons in war has greatly developed the style and mode of war. In addition to military conflicts and small-scale local wars that have already occurred by high-tech means, there will also be new war styles such as military conflicts and small-scale wars in outer space, as well as star wars and world high-tech wars. These new styles of war reflect the complicated modern international relations and affect the scale and outcome of the war. For nuclear weapons, the United States, the Soviet Union and other countries are looking for active defense measures from high technology. Nowadays, many people think that the use of high-tech weapons can effectively fight against nuclear weapons. Therefore, the popular nuclear threat strategy will be challenged. The way to launch and carry out high-tech wars is also very different from the past. Long-range warfare may be more than melee, missile warfare may be more than artillery warfare, and electronic warfare may flood the whole battlefield. The struggle between the two sides to use smart weapons and modern command tools will become increasingly prominent. (IV) Impact on the Establishment and Equipment of the Army High-tech war will affect the composition, establishment and equipment of the Army. For example, new services and arms will be added-celestial forces, deep-sea forces, robot forces, aircraft forces and so on. The proportion of services and arms will also change, the proportion of celestial army and air force will gradually increase, and the proportion of army will decrease. The proportion of deep-sea submarines in the navy will also increase. The knowledge structure of military personnel must adapt to the level of high-tech equipment. The cultural level of the army will be greatly improved, and the proportion of engineering and scientific personnel will increase. Soldiers should have high political awareness, high organizational discipline, strong physique, skilled military skills, hard work, overcoming difficulties, perseverance and dedication. This army is well-trained and scientifically managed. (v) Impact on operational activities; The operating space has increased. It is not only the task of the same combat unit, but also the front and depth are greater than previous operations. Air support can generally be divided into six levels: ultra-low altitude, low altitude, hollow, high altitude, ultra-high altitude and high altitude (outer space). From tens of thousands of meters to hundreds of kilometers of outer space. Due to the increase of long-range firearms, the maneuvering speed of troops is accelerated, and the task depth of combat troops is greatly increased. The suddenness of combat operations has increased. In strategic thinking, he can break away from convention, find a surprise attack point in complex war phenomena, and occupy an advantageous position in seeking sudden advantage. However, the rapidity of command and decision-making and the rapidity of combat action will undoubtedly help to achieve suddenness. The latter is common in high-tech wars. The extent of killing and destruction is unprecedented cruelty. There are both large-area killing weapons and precision guided weapons that kill point targets. The combination of point and surface, large destruction area and accurate killing target have brought more disasters to mankind than before. If high-energy laser weapons are used on the battlefield, there is no way to resist their destructive power. Battlefield detection equipment is very developed, which can generally detect all exposed targets, and the detected targets can generally be destroyed. In this case, how to preserve the effective force on the battlefield is a very important issue. If the attacker can't suppress the defender very effectively before the impact, then the defender may hurt the exposed attacker in an instant and recover the previous losses and consumption. Clausewitz said that defense is a powerful form of combat, and this famous saying will be confirmed again in the high-tech war. The struggle of electromagnetic spectrum is more intense. The struggle in this respect is not only reflected in interference and anti-interference, but also in reconnaissance and anti-reconnaissance, guidance and anti-guidance, C3I system and anti-C3I system. In the high-tech war, radar is a very attractive target for both sides. Electronic jamming to the opponent guidance system will become more and more important. It is more active to destroy the other party's command and control system. Electronic suppression struggle is the premise of fire fighting, otherwise it is difficult to ensure the effect of fire fighting. Therefore, the advantages of electromagnetic environment are often accompanied by victory. Attacking the target is the initiative after finding and identifying the target. Strike generally refers to fire attack, mainly air fire and ground fire attack, including electronic damage, or killing, destroying or destroying targets. This is the most active means in the high-tech war. Whether a large number of effective forces of the other side can be annihilated is decisive in any war, and high-tech wars are no exception. Occupation or protection of a target is generally the purpose of a battle, an action after a fire attack, and often the result of annihilating the enemy's effective forces. As far as general offensive (or defensive) operations are concerned, occupying (or protecting) targets is one of the signs to measure the completion of combat tasks. Favorable terrain, such as commanding heights, campaign and tactical points, is still a battleground for military strategists. (VI) Impact on Command Because satellite technology and other remote sensing and telemetry technologies are widely used in military command systems, it is not very difficult to obtain strategic information and battlefield information; Because electronic computers have become an important tool for military command, the ability to store and process information has been greatly improved; By means of laser communication, optical fiber communication, fax communication and data communication, the reliability and timeliness of communication are improved. Automatic command and control system makes military command fast and accurate, especially using artificial intelligence expert system, which can put forward decision-making suggestions and action plans for commanders to choose for reference and make the best choice. The C3I system supported by high technology can be used not only for strategic command (national, global and even outer space), but also for campaign and combat command, and even for single ship, single machine, bicycle and individual soldier. This requires commanders and staff officers to be both military experts, scientists and engineering experts, be familiar with automated command procedures, and have the knowledge and ability to use command equipment. (VII) Impact on Rear Support The huge consumption of high-tech war poses a very realistic problem for logistics support: replenishment and replenishment should be in direct proportion to consumption, and the huge consumption of high-tech war should be guaranteed by huge supply. Assuming that consumption is n and supply should be greater than n, only in this way can the war continue. If the supply is less than the demand, it will affect the war and even lead to the danger of food shortage. To achieve timely and large-scale supply and replenishment, we must master four links: ① Foresight and preparation. For the possible consumption of a war, we should have enough estimates in advance and make full preparations accordingly. For example, reserve all kinds of materials, ammunition and oil in advance. (2) Sufficient and reliable conveying force. According to the progress of the war and the consumption of various operational directions and regions, organize transportation forces in time and deliver the required materials quickly. (3) Modern means of transportation and management include two aspects. First, various means of transportation, such as railway, highway and plane transportation, or human and animal transportation. The second is to use modern management means to master the battlefield consumption, control the transportation force, and ensure the planned supply of key directions and key materials. (4) Emergency measures and reserve forces. No one is always smart. The problem is that when there is a "loss", there are sufficient emergency measures and reserve forces at hand. Due to the high-tech war, the boundary between the front and the rear is getting thinner and thinner. In order to organize effective support in the rear, we must pay attention to the effective defense of the rear institutions and prevent air attacks, long-range weapons attacks, airborne troops attacks and enemy attacks interspersed with troops. Therefore, air defense, artillery defense, missile defense and defense against the ground and outer space must be organized in the rear. In this way, the rear support can be organized reliably and effectively. I hope it will be helpful to discuss the role of China's national defense construction in national development. First, national defense construction can promote economic development, which is guaranteed by scientific, technological and industrial strength. Reasonable national defense construction can promote industrial development, revitalize the links between enterprises, improve the level of science and technology and promote the development of science and technology. Second, strong national defense strength is an important factor to ensure trade security. Only a strong national defense strength can guarantee the safety of its overseas assets and important trade routes, as well as the personal safety of overseas citizens. Third, enhance its international prestige. As we all know, in today's international arena, there are not only a series of hard power competitions such as economic factors, but also some soft power competitions such as international prestige. Only when you are qualified to have a say in the world will other countries admire and respect you, which will be beneficial to their own enterprises, culture and so on.