From Circumnavigating Taiwan to Three-Dimensional Coverage: The Strategic Shift in the PLA's Systematic Development of Unmanned Systems

From Circumnavigating Taiwan to Three-Dimensional Coverage: A Strategic Turn in the PLA's Systematic Development of Unmanned Systems

Recently, images of the PLA's drones frequently circumnavigating Taiwan, disclosed by official channels such as the China Military Network, have once again drawn external attention to the rapid development of China's unmanned systems. However, viewing such actions merely as a simple display of military force undoubtedly underestimates the depth of the PLA's strategic layout in the field of unmanned systems. From technological breakthroughs to tactical applications, from single platforms to system warfare, China is constructing an unmanned combat network that covers land, sea, air, space, and cyber domains. This not only changes the PLA's combat mode but also reshapes the military balance in the Western Pacific.

## Technological Breakthroughs: A Leap from Following to Running Alongside

In the past decade, the PLA's unmanned systems have undergone a qualitative change from technological catch-up to partial leadership. Taking drones as an example, the Wing Loong and Rainbow series of reconnaissance-strike integrated drones have validated their performance in multiple international markets, while the service of the Attack-11 stealth unmanned combat aircraft and the WZ-8 hypersonic unmanned reconnaissance aircraft marks that China has reached a world advanced level in the high-end unmanned systems field.

It is noteworthy to consider three key dimensions of technological development. First, a significant improvement in the level of intelligence. According to public reports, the PLA's new generation of unmanned systems is generally equipped with advanced artificial intelligence decision-making systems, capable of autonomous target recognition, path planning, and collaborative combat capabilities. This means that the role of operators is shifting from direct control to mission supervision, allowing a single operator to command multiple platforms simultaneously.

Second, a substantial enhancement in stealth performance. The induction of the Attack-11 has broken China's blank in the field of stealth unmanned combat aircraft, with its flying wing design and stealth coating enabling it to perform reconnaissance and strike missions in high-threat environments. The emergence of such platforms gives the PLA the capability to create openings in the opponent's air defense network.

Third, a continuous increase in endurance. Assessments indicate that the endurance of the new generation of large unmanned aircraft has exceeded 40 hours, with a combat radius reaching thousands of kilometers, allowing them to conduct prolonged surveillance and strikes across the vast waters between the first and second island chains in the Western Pacific.

## System Construction: Three-Dimensional Coverage of Land, Sea, Air, and Space

Technological progress is just the foundation; more importantly, the PLA is constructing an unmanned systems combat system. This system includes at least four levels:

In the maritime domain, the development of unmanned surface vessels and unmanned underwater vehicles is particularly noteworthy. According to public information, China has tested multiple types of large unmanned surface vessels, equipped with various functions such as anti-submarine warfare, mine sweeping, and electronic countermeasures. More attention should be paid to the field of unmanned underwater vehicles, where the Haiyi series of underwater gliders has set records for deep diving and endurance, providing the PLA Navy with new underwater surveillance capabilities. The networking of these platforms will enable China to achieve a qualitative leap in underwater situational awareness in the East China Sea, South China Sea, and even the Western Pacific.

In the land domain, from tactical-level small drones to medium-sized reconnaissance-strike integrated drones, and then to large high-altitude long-endurance platforms, the PLA has formed a complete tiered configuration. Notably, army combined brigades are generally equipped with company-level small reconnaissance drones, and this deployment of unmanned systems down to the grassroots level has revolutionized traditional tactical reconnaissance methods.

In the air domain, from low altitude to high altitude, from subsonic to hypersonic, the PLA has constructed a multi-layered unmanned reconnaissance-strike network. The service of the WZ-8 is particularly significant; this hypersonic unmanned reconnaissance aircraft, capable of flying at speeds of 5-6 Mach, can cover key maritime areas in the Western Pacific within an hour, providing critical intelligence support for time-sensitive target strikes.

In space and cyberspace, although public information is limited, it can be inferred that the PLA is developing unmanned space platforms and networked unmanned systems to achieve full-domain coverage and cross-domain collaboration.

## Tactical Applications: A Shift from Auxiliary to Main Combat

A deeper change lies in the shift in tactical application concepts. The PLA no longer views unmanned systems as a simple supplement to manned platforms but as independent combat forces or even main combat forces to be built and utilized.

In the Taiwan Strait, frequent drone patrols are not only psychological pressure but also serve to validate combat concepts, refine collaborative operational processes, and collect electromagnetic intelligence. Each patrol is a practical exercise, and the accumulated data will provide valuable decision-making references for potential future military actions.

In the South China Sea, the normalization of unmanned system deployments allows China to maintain a continuous presence and surveillance at relatively low costs. Compared to manned platforms, unmanned systems are not limited by personnel fatigue and can conduct uninterrupted patrols, making them ideal tools for law enforcement and rights protection due to their "cost-effective" nature.

Of particular interest is the development of "swarm tactics." The PLA has repeatedly demonstrated the capability for large-scale drone swarm flights, reportedly reaching hundreds of units. In actual combat, this low-cost, high-density swarm attack could pose a serious challenge to the opponent's air defense systems—even if the interception rate is as high as 90%, the remaining 10% of penetrating drones could still achieve tactical objectives.

## Strategic Impact: Changing the Military Balance in the Western Pacific

The rapid development of unmanned systems is changing the regional military balance on multiple levels:

First is the change in cost-effectiveness. The unit price of unmanned systems is far lower than that of manned platforms, and they do not involve the risk of personnel casualties, allowing China to achieve military presence and deterrence at relatively low costs. In a potential high-intensity conflict, a large number of low-cost unmanned systems could force opponents to expend expensive air defense missiles, creating cost asymmetry.

Second is the change in operational tempo. The persistence and expendability of unmanned systems enable continuous and uninterrupted combat operations, which will exert tremendous pressure on the opponent's personnel, equipment, and logistical support. Traditional "pulse" operations may be replaced by "continuous squeeze" operations.

Third is the compression of decision-making time. High-speed unmanned reconnaissance platforms and real-time data transmission make "detect and destroy" possible, potentially shortening the time from intelligence collection to firepower strike to minutes. This requires opponents to possess equally rapid response capabilities; otherwise, they will be at a severe disadvantage.

Fourth is the enhancement of tactical flexibility. The diversity of unmanned systems allows the PLA to choose the most suitable tools for different scenarios and targets, from "gray zone" conflicts to high-intensity warfare, with corresponding unmanned platforms available for both nearshore and offshore operations.

## Challenges and Limitations: Caution Against Over-Optimism

However, it must be recognized that the development of unmanned systems still faces numerous challenges:

The anti-jamming capability of command and control systems is a critical bottleneck. In adversarial environments, communication links may be suppressed or deceived, and the decision-making reliability of fully autonomous artificial intelligence systems in complex battlefield environments remains to be tested. The experiences of the U.S. military in this regard are worth learning from—they found that unmanned systems perform excellently in low-confrontation environments but suffer significant performance degradation in high-intensity electronic warfare environments.

Platform survivability is also a practical issue. Most drones lack maneuverability and protective capabilities, making them vulnerable in the face of advanced air defense systems. Although "swarm tactics" can partially mitigate this issue, opponents are also developing targeted countermeasures, such as high-energy lasers and microwave weapons.

Additionally, whether the construction of "software" aspects such as personnel training, maintenance support, and tactical innovation can keep pace with the speed of hardware development will directly affect the combat effectiveness of unmanned systems. The PLA has emphasized practical training in recent years, but there is still insufficient experience in the large-scale practical application of unmanned systems.

## Conclusion: Strategic Choices on the Eve of Qualitative Change

The development of the PLA's unmanned systems has reached a critical point of qualitative change. From single platforms to system warfare, from technological catch-up to partial leadership, from auxiliary means to main combat forces, this process not only reflects the progress of China's defense industry but also indicates profound changes in the PLA's combat concepts and military strategies.

For other countries in the region, this trend brings new security challenges. Traditional defense systems centered on manned platforms may need to be re-evaluated and adjusted. How to respond to the threat of large-scale, low-cost, high-endurance unmanned systems will become an important topic in military planning over the next decade.

For China itself, the development of unmanned systems is both an opportunity and a test. How to translate technological advantages into combat capabilities, how to maintain technological leadership while avoiding an arms race, and how to manage escalation risks while using unmanned systems to safeguard national interests are all strategic questions that require deep consideration.

It is foreseeable that with the continuous advancement of artificial intelligence, new materials, and new energy technologies, the status of unmanned systems in future warfare will further rise. We are standing at a historical turning point, where traditional manned combat modes are being replaced by new models of manned-unmanned collaboration and even unmanned dominance. The ultimate direction of this transformation will profoundly impact the geopolitical landscape and military power dynamics of the 21st century.