For a period of time, unmanned combat forces represented by drones, unmanned boats, unmanned vehicles, etc. have been heavily deployed in wars and armed conflicts, profoundly changing the traditional offensive and defensive situation and combat style. As the scale of unmanned combat forces continues to expand, technology continues to improve, and their performance on the battlefield becomes more impressive, more and more countries are putting the development of unmanned combat forces on the priority agenda of military construction. Some countries with higher levels of technological equipment are beginning to establish unmanned combat forces and corresponding command structures. Unmanned combat forces are changing military organization, rewriting operational rules, and driving changes in the form of warfare from multiple dimensions. The acceleration of the formation of unmanned combat forces is driven by multiple factors, including the demands of war, technological advancements, and actual combat effectiveness. The battlefield demand drives the development direction. Since the 21st century, unmanned technology equipment has been widely used on the battlefield, becoming an effective way to kill enemy forces and expand military achievements. During the Iraq War, in order to reduce casualties, the US military used multiple types of unmanned systems to carry out tasks such as bomb disposal, mine clearance, and obstacle clearing. In the Syrian war, Syrian anti-government armed groups used unmanned aerial vehicles to attack Russian air bases. During the Nagorno Karabakh conflict, Azerbaijan deployed a large number of drones on the battlefield, turning the conflict into a large-scale drone war. Since the Russia-Ukraine conflict, the two sides have invested tens of thousands of unmanned aerial vehicles (UAVs) to carry out tasks such as persistent surveillance and reconnaissance and suicide attacks. In September 2025, Russian Defense Minister Belousov stated that approximately 80% of firepower strikes in the special military operations zone are carried out by unmanned systems. Technological iteration has given rise to stronger combat capabilities. With the continuous empowerment of network communication technology and artificial intelligence technology, unmanned combat forces are constantly iterating and upgrading towards autonomous intelligence and scale collaboration. This objectively requires countries to break away from the decentralized development model of unmanned power construction, and strengthen the level of systematization, scale, synergy, and integrity. Russia and Ukraine have taken the lead in the world in independently forming unmanned combat forces, fully leveraging their advantages in gathering energy, and organically combining and rapidly transforming unmanned combat experience with the development of unmanned combat technology and equipment. Practical achievements promote large-scale construction. From recent regional conflicts, it can be seen that FPV unmanned aerial vehicle networks costing thousands of dollars can destroy high-end equipment worth billions of dollars, while expensive anti-aircraft missiles often intercept only a cheap drone. Military experts therefore consider drones as "force multipliers that accelerate combat power generation". In terms of tactical applications, unmanned systems can not only collaborate with artillery ammunition to form firepower advantages, but also perform diverse tasks such as electronic suppression, communication relay, and material delivery, significantly enhancing the comprehensive combat capability on the battlefield; In terms of long-range strikes, unmanned systems can carry out covert raids on enemy territory, weakening the opponent's war support capabilities such as energy, electricity, and transportation. The high cost-effectiveness on the battlefield further stimulates countries to accelerate the formation of organized unmanned combat forces. At present, the systematic development of unmanned combat forces is the trend, and the multiple impacts it brings, especially the moral dilemma and ethical norms behind unmanned combat, need to be jointly explored and properly addressed by the international community. Refactoring the logic of war costs. Unmanned combat does not necessarily reduce the cost of manpower and material resources in warfare. Large unmanned equipment is still a synthetic product of high-precision technology, complex systems, and special materials. For example, the basic version of the US MQ-9 drone has a unit price of over 30 million US dollars, while the MQ-4C and RQ-4 high-altitude drones have a unit price of over 100 million US dollars. For most countries, building a systematic unmanned system force with a certain scale is not an easy task. The proliferation of low-cost small unmanned equipment has made "inability to defend and exhaust" the norm. By continuously deploying low-cost unmanned platforms, the attacking side can not only achieve tactical destruction, but also force the defending side into a cost dilemma. In addition, the large-scale deployment of unmanned combat forces into the battlefield has further increased the intensity of the war, and casualties may not decrease due to the so-called 'unmanned warfare'. Rewrite the traditional logic of deterrence. The establishment of unmanned combat units helps to achieve full coverage of unmanned combat forces and a closed-loop kill chain in seconds, effectively expanding national security defense and strategic buffer space, but also brings new threats. On the one hand, the large-scale use of unmanned combat forces by military powers for game exploration may become the norm, and countries will compete to demonstrate strategic determination through "non-contact" confrontation, and form a new strategic balance model in sustained "non-contact" confrontation. On the other hand, the large-scale application of unmanned combat forces is also rewriting the traditional logic of military deterrence: unmanned forces enhance the deterrence effectiveness of conventional forces, amplify the psychological deterrence effect, and even challenge the nuclear deterrence function. Non nuclear countries using drones to attack strategic facilities of nuclear countries will break the traditional strategic balance. Challenge international norms and standards. As a new type of force, the development and practical application of unmanned combat capabilities have exceeded the scope of existing international regulations. Unmanned systems not only give the attacking side operational advantages, but also easily promote the risk of preventive strikes. In particular, there is still a risk of misjudgment in the autonomous reconnaissance, identification, and strike functions of unmanned systems, which can easily cause innocent civilian casualties. The severity of this issue will become even more prominent after the large-scale deployment of unmanned system troops on the battlefield. How to balance the relationship between battlefield games and moral standards, and how to formulate and improve targeted international regulations and ethical norms, will become an important challenge facing the international community. (New Society)