New Shield at the edge: radar, ground-based interceptors, and robotic protection for the dismounted soldier

By Leo A. McCloskey, Vice President, Marketing at Echodyne

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Over the past six months, a profound shift has taken shape across NATO, Ukraine, the United States, and Indo-Pacific defense communities. The protection of dismounted soldiers is increasingly being built around distributed sensing, counter-UAS systems, robotic teammates, and—most critically—radar-enabled interception.

At the center of this transformation is a simple battlefield reality: infantry units now operate under constant aerial threat. Cheap FPV drones, loitering munitions, autonomous reconnaissance systems, and AI-assisted targeting networks have fundamentally altered survivability at the tactical edge. Concealment alone is no longer sufficient. Any dismounted unit unable to rapidly detect and defeat small drones is increasingly exposed.

In response, militaries are constructing a new tactical architecture centered on persistent sensing, ground-based interception, and autonomous systems operating ahead of maneuver forces. Among these technologies, radar has emerged as the essential enabler. Across reporting from Ukraine, NATO exercises, and U.S. defense programs, one theme appears repeatedly: radar is evolving from a rear-echelon air-defense asset into a frontline survivability tool for small units.

This transition is reflected in the rapid emergence of compact counter-UAS radar systems designed specifically for expeditionary operations and mobile force protection. Companies such as Echodyne have focused heavily on electronically scanned array radar architectures capable of delivering persistent 4D drone detection and tracking in highly cluttered operational environments. (echodyne.com) Rather than defending only fixed installations, these radar systems are increasingly being integrated directly into maneuver formations, autonomous platforms, and mobile counter-drone networks.

At the same time, ground-based interceptors—ranging from autonomous turrets to kinetic interceptor drones and mobile counter-UAS platforms—are becoming the preferred tactical “effector” layer for defeating drone threats. Critically, these systems depend on radar for detection, tracking, targeting, and engagement guidance. The result is the emergence of a distributed defensive network in which radar does not merely observe the battlefield but actively enables protection and interception at the tactical edge.

The war in Ukraine has demonstrated how small drones now shape nearly every aspect of ground combat. FPV attack drones hunt infantry in trenches, reconnaissance quadcopters direct artillery strikes within minutes, and loitering munitions extend surveillance and strike capability deep into rear areas. The distinction between air defense and infantry survivability has effectively collapsed.

Historically, tactical radar systems were large, vehicle-mounted assets designed to detect aircraft or artillery. Today, compact electronically scanned array radars are moving directly into frontline counter-UAS roles. These systems are increasingly integrated into expeditionary counter-drone kits, tactical vehicles, autonomous turrets, and robotic platforms accompanying maneuver forces.

The reason is straightforward: radar provides the earliest reliable warning. Unlike purely optical systems, radar functions through darkness, smoke, fog, dust, rain, and battlefield clutter. Unlike RF-only detection systems, radar can still track drones operating autonomously or using hardened communications links. In practice, radar has become the foundational sensor layer upon which modern tactical counter-UAS systems depend.

This evolution is especially visible in systems integrating compact radar architectures into distributed sensing networks. Digital Force Technologies, for example, has emphasized multi-node autonomous sensing systems and sensor-agnostic command-and-control architectures designed to integrate radar, electro-optical tracking, and autonomous effectors into a unified counter-UAS kill chain. (digitalforcetech.com) Increasingly, the tactical radar mission is not simply surveillance, but the generation of engagement-quality track data for a range of kinetic and non-kinetic interceptor systems.

One of the most significant developments of the past year has been the rapid growth of ground-based interceptor systems as the preferred tactical counter-UAS effector. Early in the drone war, militaries relied heavily on electronic warfare and jamming. But the battlefield has adapted quickly. FPV drones now frequently employ frequency hopping, autonomous navigation, fiber-optic control links, AI-assisted target recognition, and pre-programmed attack profiles that reduce the effectiveness of jamming alone.

As a result, militaries are increasingly shifting toward kinetic and semi-kinetic interception methods.

Ukraine has become the primary proving ground for this transition. Low-cost interceptor drones designed specifically to hunt enemy UAVs are now appearing across the battlefield because they offer a far more favorable cost-exchange ratio than using expensive missiles against inexpensive drones. Yet interceptor systems are only as effective as the sensing and targeting infrastructure supporting them. This is where radar becomes indispensable.

Modern ground-based radar systems increasingly provide the initial detection, threat classification, track continuity, and engagement-quality targeting data required for successful interception. In many emerging architectures, radar also supports mid-course guidance cues and AI-assisted engagement logic. In effect, radar is becoming the “eyes” of the interceptor layer.

This mirrors the evolution of traditional integrated air-defense systems but compressed down to the tactical edge and scaled for small drones rather than conventional aircraft.

Several recent developments illustrate this transition clearly. In Ukraine, layered anti-drone defenses increasingly combine radar, acoustic sensing, electro-optical tracking, and interceptor drones into integrated protective networks. Rather than relying on a single sensor or weapon, operators fuse multiple detection methods to maintain reliable target tracks against highly maneuverable aerial threats.

Electro-optical autonomy is becoming particularly important within these layered systems. OpenWorks Engineering's Vision Guard architecture reflects this trend directly, combining portable autonomous observation, AI-assisted detection, and long-range tracking designed to support both mounted and dismounted counter-UAS operations. (openworksengineering.com) These systems increasingly complement radar by providing persistent visual identification and tracking once radar establishes an initial threat cue.

Radar remains essential because small drones are exceptionally difficult to track visually, especially against cluttered terrain or urban backgrounds. Once radar establishes and maintains a track, interceptor systems—whether kinetic drones, remote weapon stations, or autonomous turrets—can engage with far greater effectiveness.

This dramatically reduces reaction time, allowing defenders to intercept drones before they reach lethal range. It also improves interceptor efficiency by reducing wasted engagements and increasing probability of kill. Perhaps most importantly, radar enables machine-speed cueing and semi-autonomous defense architectures in which onboard algorithms can generate intercept solutions faster than human operators alone.

The result increasingly resembles a miniature integrated air-defense system deployed at platoon, company, or battalion level.

The movement of counter-UAS capability directly into infantry formations represents one of the clearest doctrinal shifts of the past year. The U.S. Marine Corps' Organic Counter-Small Unmanned Aircraft Systems initiative reflects this transition directly, while similar efforts across NATO indicate that counter-drone protection is now viewed as a baseline survivability requirement rather than a specialist capability.

Increasingly, however, the battlefield model is not centered on a single defensive technology. Instead, survivability is being built around layered sensing and distributed effectors operating cooperatively. Wearable and highly mobile counter-drone systems are now becoming integral to this architecture. Danish company MyDefence, for example, has focused heavily on lightweight soldier-worn and vehicle-mounted detection and jamming solutions intended for frontline maneuver units operating forward of fixed defenses. (MyDefence)

This reflects a broader doctrinal realization: counter-UAS protection must move with infantry units rather than remain concentrated around static infrastructure.

Across emerging architectures, radar provides persistent detection and tracking, RF and acoustic systems assist with identification and classification, AI supports prioritization and engagement decisions, electronic warfare delivers soft-kill effects, and interceptor systems execute hard-kill defeat. This layered approach is increasingly viewed as essential because no single countermeasure remains sufficient against adaptive drone threats.

At the same time, small unmanned ground vehicles are evolving rapidly within this ecosystem. Initially conceived primarily as logistical support platforms, modern UGVs are increasingly becoming mobile sensor and protection nodes. Robotic platforms are now being evaluated as reconnaissance assets, remote overwatch systems, local security nodes, casualty evacuation vehicles, and forward-deployed sensor carriers.

Radar integration is becoming especially attractive for these robotic platforms. A radar-equipped UGV can move ahead of infantry formations and establish local airspace awareness without exposing soldiers directly. Combined with electro-optical systems and AI-assisted processing, the robot effectively becomes a forward-deployed protective sensor capable of cueing nearby interceptors and counter-UAS systems.

This approach offers several operational advantages. Risk is displaced from the soldier to the machine. Persistent surveillance becomes possible while troops remain concealed. Radar coverage gains mobility, allowing sensing networks to reposition dynamically alongside maneuver units. Most importantly, the UGV itself becomes part of the tactical integrated air-defense network.

This is particularly valuable in urban combat, wooded terrain, and degraded visual environments where traditional line-of-sight awareness is severely limited.

NATO and European defense organizations are adapting rapidly to these battlefield lessons. Recent counter-drone exercises, interoperability programs, and testing initiatives increasingly emphasize distributed sensing and layered tactical air defense. A major trend is the movement away from centralized architectures toward modular networks where radar, electronic warfare systems, and interceptors are distributed across maneuver formations.

The battlefield is therefore evolving toward what could be described as a distributed protective web, where multiple sensors and interceptors cooperate dynamically across the tactical environment. Radar is increasingly the connective tissue holding this architecture together.

The same trends are also becoming visible in homeland security. Preparations for the 2026 FIFA World Cup in the United States have accelerated investment in tactical counter-drone systems, radar-enabled airspace monitoring, and civil-military coordination. Federal agencies, National Guard units, and local law enforcement are increasingly rehearsing layered counter-UAS operations built around persistent radar coverage, drone tracking, interceptor coordination, and rapid tactical response.

Again, radar provides the foundational capability because it offers reliable early detection with minimal collateral risk. Technologies initially developed for battlefield survivability are rapidly becoming dual-use homeland security tools.

The past six months have revealed one unmistakable trend: the future infantry protective architecture will be sensor-centric, radar-enabled, and increasingly robotic.

Tomorrow's dismounted force is likely to operate inside a layered defensive network composed of tactical radar, acoustic and RF sensing, AI-enabled fusion, autonomous interceptors, ground-based effectors, robotic sensor nodes, and distributed command-and-control systems. Within this architecture, radar serves as the critical enabler connecting detection to interception.

Meanwhile, ground-based interceptors are emerging as the dominant tactical counter-UAS effector because they provide scalable, reusable, and increasingly autonomous protection against mass drone threats.

The battlefield lessons from Ukraine have accelerated this transformation dramatically. Capabilities once associated primarily with strategic air defense are now descending directly to the squad and platoon level.

For European militaries and NATO forces, the implications are profound. The future survivability of the dismounted soldier will depend less on passive protection alone and increasingly on the ability to detect, track, and intercept threats before they reach lethal range.

In that emerging defensive ecosystem, radar is becoming the indispensable foundation of the modern battlefield shield.

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