In recent years, drones have been widely used in some battlefields. Their demonstrated power has attracted attention from various countries. Especially with the use of FPV drones and the emergence of unmanned bombers, people are exploring how to better utilize the role of drones while also studying how to counter them. The most direct way to deal with incoming drones is to shoot them down. Simply put, it means using small missiles with the assistance of radar and electro-optical equipment to destroy larger enemy drones at a distance, and using small caliber anti-aircraft guns or rapid fire guns to deal with incoming drones at a closer distance. Some changes in the design and use of drones, such as miniaturization and bee colony use, are making direct shooting more difficult and giving rise to new countermeasures. For example, in October 2024, at the Fourth Türkiye National Defense, Aviation and Aerospace Industry Exhibition, a company in Türkiye exhibited one set of passive detection system and two sets of soft killing systems, which reflected the exploration of enterprises in this country in creating two anti UAV means, namely, "tailwind ear" and "soft knife". This passive detection system in Türkiye is an acoustic system with a total weight of less than 25kg. It uses a tripod to support 18 microphones arranged on multiple working arms according to a certain array. The development positioning of this system is to be a "sound detector", which can detect, classify, and track micro and small drones within a certain range based on the sound of the drone's rotor or engine. It is truly a "windward ear". It is said that under better weather conditions, the detection effect of the system will be better. It takes about one second from detecting the drone to completing classification, and can detect up to 10 targets simultaneously. The two soft killing systems exhibited simultaneously are a reactive disruptor and a "chameleon" drone trapping system. This reactive jammer can be powered by batteries or operated by connecting to a main power source. It can detect the communication link frequency between FPV drones and operators and interfere with them. It is said that it can interfere with more objects, such as signals from global satellite positioning and navigation systems. The "chameleon" drone trapping system is a device that can cause misjudgments in the target drone navigation system. Simply put, it can send certain positioning and navigation signals to the target drone, making it mistakenly believe that it has arrived at the "destination" or go to the place that the operator of the "chameleon" drone trapping system wants it to go. From "tailwind ear" to "soft knife", the exploration of relevant enterprises in Türkiye in this regard reflects a trend that countries around the world continue to enhance their anti UAV capabilities. From the practice of various countries, there are currently two main development paths for countermeasures against drones. On the one hand, it focuses on the composition and structure of drones. In order to reduce weight, drones often use many lightweight composite materials with weak impact resistance. The high-speed impact of some projectiles can cause it to shatter into pieces. Based on this, some companies have developed countermeasure drones, such as the "drone interceptor" developed by the Polish Advanced Protection Systems company, which relies on its sturdy body and speed to directly impact the target drone. There are many electronic devices on drones, and their protection is weak. Many countries have accelerated the development of laser and microwave anti drone systems to address this issue. Some of these weapons have been deployed in actual combat. Most drones rely on rotor flight, and a countermeasure type of drone has emerged on some battlefields. By binding sticks to the drone, it can achieve close range and precise "strangulation" of the target drone's rotor. Due to the small size and slow flight speed of drones, some countries' enterprises have developed countermeasure drones that can throw rope nets. By selecting the right timing, the target drone can be captured. On the other hand, we need to find ways to improve the operational mechanism of drones. If the drone accelerates, the noise from the wings or engines will increase. In response to this, acoustic passive detection systems have emerged. Drones need to constantly "communicate" with their operators to carry out missions, so some countries have developed jammers for these communication signals. Some highly autonomous drones require the support of global satellite positioning and navigation systems when carrying out missions, so some defense companies have begun to develop devices such as the "chameleon" drone trapping system. The flight path of drones changes rapidly and they are becoming increasingly adept at using terrain and objects to block their movements. Therefore, some countries have begun to reintroduce aerial balloons in an attempt to achieve long-term scanning of target areas. However, compared to the constant changes in drone design and usage, none of these countermeasures can fundamentally solve the problem. Only by taking multiple measures and applying them comprehensively can the effectiveness of countering drones be significantly improved. The company in Türkiye also exhibited three sets of interrelated reaction systems, probably for this reason. (New Society)