Army Lasers Blast Drones in a Real Homeland Defense Mission
Army lasers blast drones is no longer simply a description of a technology demonstration. On August 25 and 26, 2026, Joint Task Force Southern Border used the U.S. Army Multipurpose High Energy Laser, or AMP HEL, to engage and defeat three hostile unmanned aircraft systems during an operational homeland security mission.
The operation, conducted by Joint Task Force Southern Border under U.S. Northern Command in support of U.S. Customs and Border Protection, represents the first publicly announced use of AMP HEL against cartel linked drones along the southern border. U.S. officials said the aircraft were considered hostile because they were being used in activities that posed a physical threat to military personnel and CBP partners.
The significance extends beyond the border mission. It provides a practical demonstration of a broader U.S. defense strategy: using relatively inexpensive, electrically powered interceptors against an expanding population of low cost unmanned aircraft.
Key Takeaways
The AMP HEL engagements show how directed energy is moving from testing into operational counter UAS missions, while the U.S. military continues developing higher power laser systems for future air defense.
AMP HEL: How the Army’s Laser Weapon Works
The Army Multipurpose High Energy Laser is part of the Army’s effort to develop mobile, electrically powered directed energy systems capable of defeating unmanned aircraft.
The current AMP HEL effort is closely associated with AeroVironment’s LOCUST laser weapon system. In September 2025, AeroVironment announced delivery of two AMP HEL prototypes using a 20 kW class LOCUST laser integrated onto the General Motors Defense Infantry Squad Vehicle. In December 2025, the company announced another two systems mounted on Oshkosh Joint Light Tactical Vehicles. The JLTV configuration uses the same 20 kW class laser but incorporates a larger aperture beam director intended to improve lethality performance.
The basic engagement sequence is different from a conventional missile launch.
A counter UAS laser must first detect and track the aircraft. The fire control system then points the beam director toward the target and maintains precise tracking while laser energy is delivered onto a vulnerable area of the aircraft.
Unlike a missile, the laser does not need to physically travel to the target. The weapon instead delivers electromagnetic energy at the speed of light.
That creates several important advantages:
- No missile propellant or interceptor body is consumed for each engagement.
- The weapon can potentially engage multiple targets while electrical power remains available.
- The system can be mounted on mobile vehicles.
- The same architecture can potentially support different counter UAS missions.
- Engagement economics can be substantially different from missile based air defense.
The Army has been developing this concept for years. Earlier systems such as the 5 kW MEHEL demonstrated the ability to defeat small UAS during Army exercises, while the Multi Mission High Energy Laser program moved toward a 50 kW class capability on a Stryker platform.
The progression from experimental 5 kW systems to 20 kW class AMP HEL systems and 50 kW class DE M SHORAD prototypes illustrates how directed energy technology has been moving toward operationally relevant power levels.
Why Army Lasers Blast Drones Instead of Using Missiles
The strongest argument for directed energy is not simply that lasers are technically impressive. It is the cost exchange problem created by mass drone warfare.
A relatively inexpensive drone can force a defender to choose between allowing the aircraft through or launching a considerably more expensive interceptor.
That relationship becomes increasingly unfavorable when an adversary uses large numbers of expendable aircraft.
A laser changes the economics because the weapon does not require a conventional interceptor for every target. The War Department has specifically identified low cost per shot and deep magazines as important advantages of directed energy against drone swarms.
This does not mean a laser engagement is free.
The system requires:
- Electrical generation and storage
- Thermal management
- Precision tracking
- Beam control
- Sensors and fire control software
- Maintenance and trained operators
- Suitable atmospheric conditions
The real advantage is therefore not zero cost. It is the potential to reduce the marginal cost of repeated engagements against suitable targets.
That distinction becomes critical when defending military bases, border installations, ports or maneuver forces against repeated drone attacks.
The Technical Challenge: Putting Enough Energy on Target
A laser’s effectiveness depends on more than its rated electrical or optical power.
The weapon must place sufficient energy onto a target for long enough to create a damaging effect. That makes beam quality, tracking accuracy, atmospheric transmission, dwell time and target vulnerability critical factors.
The Army has previously emphasized the importance of beam quality because tightly focused energy allows greater power density at the target.
Weather is another major consideration.
Fog, dust, smoke, rain and other atmospheric conditions can scatter or absorb laser energy. These factors can reduce effective range or increase the time required to maintain an engagement.
This is why a practical counter UAS architecture cannot rely on a laser alone.
Instead, future systems are likely to combine:
- Radar detection
- Electro optical and infrared tracking
- Electronic warfare
- High energy lasers
- Kinetic interceptors
- Command and control networks
The defender can then select the appropriate effect for the target.
A small commercial style drone may be an ideal laser target. A larger or faster aircraft could require a missile or gun. A drone dependent on a vulnerable control link could potentially be handled through electronic warfare.
From Border Defense to Counter Cruise Missile Warfare
The southern border engagement is important because it demonstrates a low altitude counter UAS application in an operational environment. But the U.S. defense establishment is looking well beyond small drones.
In July 2026, the Department of War awarded two Joint Laser Weapon System agreements to nLIGHT Defense and Lockheed Martin Aculight. The agreements have an initial value of $86 million and a total program ceiling of $847 million.
The program is intended to transition directed energy from demonstration systems toward field ready, production oriented platforms.
The planned power progression is particularly significant. Initial JLWS systems are expected to operate around 150 kW, while later systems are intended to scale toward approximately 300 to 500 kW.
That moves the technology into a substantially different class of air defense.
A 20 kW class mobile laser optimized for counter UAS missions and a 500 kW class system intended to contribute to cruise missile defense have different requirements for power generation, cooling, beam control, sensing and engagement range.
The underlying technology is related, but the engineering challenge becomes much greater as target speed, range and hardness increase.
Army Lasers Blast Drones as Part of Layered Counter UAS Defense
The most important lesson from the border operation is that the laser should not be viewed as a standalone replacement for traditional air defense.
Modern counter UAS systems are becoming increasingly layered.
A notional defensive architecture could use:
- Passive sensors to detect emissions or unusual activity
- Radar to identify and track airborne objects
- Electronic warfare to disrupt communications or navigation
- Directed energy to defeat suitable targets
- Cannons or missiles for targets outside the laser’s engagement envelope
This approach helps preserve expensive kinetic interceptors for threats that cannot be economically or technically handled by other means.
The Army’s earlier DE M SHORAD program provides a useful example. The system combined a 50 kW class laser with a Stryker platform and was designed to counter UAS alongside other aerial and indirect fire threats. The Army delivered four prototype systems to a battalion beginning in 2023.
The AMP HEL approach takes the concept toward lighter mobile platforms.
That mobility could matter for homeland defense as well as expeditionary operations.
Comparison: Laser vs Kinetic Counter UAS Weapons
| Capability | High Energy Laser | Kinetic Interceptor |
|---|---|---|
| Engagement mechanism | Concentrated electromagnetic energy | Explosive or kinetic warhead |
| Cost per engagement | Potentially low after system acquisition | Generally higher |
| Magazine depth | Limited primarily by power, cooling and system endurance | Limited by carried ammunition |
| Engagement speed | Speed of light after tracking and firing | Missile flight time required |
| Atmospheric sensitivity | Significant | Generally lower |
| Line of sight | Required | Depends on weapon |
| Swarm potential | Strong potential against suitable targets | Can be constrained by interceptor inventory |
| Large target capability | Depends heavily on laser power and dwell time | Mature for many target classes |
| Reload requirement | No conventional reload after each shot | Physical resupply required |
| Primary role | Counter UAS and potentially missile defense | Broad air defense |
The comparison shows why neither technology is likely to replace the other.
Lasers offer an attractive response against certain classes of targets, particularly when the defender expects repeated engagements. Kinetic systems remain essential when targets are too distant, too fast, too hardened or otherwise unsuitable for directed energy.
The Bigger Shift: Mass Drones and Deep Magazines
The border deployment comes as the Pentagon is preparing for a battlefield in which mass attritable drones are expected to become increasingly important.
The War Department has said it intends to procure hundreds of thousands of drones beginning as soon as next year, alongside counter UAS technologies including directed energy systems.
That creates an obvious strategic requirement.
If the United States expands its own use of large numbers of low cost drones while potential adversaries do the same, air defense systems must become capable of handling much larger numbers of airborne targets.
The traditional model of matching one expensive interceptor to one relatively cheap drone becomes difficult to sustain at scale.
Directed energy provides one potential answer.
It is particularly attractive when combined with automated detection and fire control. Artificial intelligence can help classify targets and prioritize engagements, while the laser provides the physical defeat mechanism.
This is consistent with the War Department’s broader technology priorities. Scaled Directed Energy, alongside applied AI, contested logistics, quantum and battlefield information dominance, biomanufacturing and scaled hypersonics, has been designated one of six critical technology areas.
Operational Limitations Remain
Despite the successful border engagements, it would be premature to conclude that lasers have solved the counter UAS problem.
Several limitations remain.
Weather and Atmosphere
Laser propagation can be degraded by atmospheric conditions. A system that performs well in clear conditions may require additional sensing, power or alternative weapons during adverse weather.
Power and Cooling
Higher power lasers generate significant thermal loads. Scaling from tens of kilowatts toward hundreds of kilowatts requires increasingly capable electrical generation and cooling systems.
Target Vulnerability
Not every drone presents the same vulnerability. Target materials, geometry, speed and maneuverability influence the amount of energy required for defeat.
Tracking
A laser requires highly accurate tracking. Small, fast and maneuvering targets can place significant demands on sensors and beam control.
Rules and Airspace Safety
Homeland counter UAS operations present additional challenges because military systems may operate around civilian aircraft, infrastructure and populated areas. AeroVironment and the Army have previously worked with the Federal Aviation Administration on demonstrations examining safe laser operation in mixed civilian airspace.
These issues are particularly important along the southern border, where military, law enforcement and civilian airspace can overlap.
The Future of Directed Energy Weapons
The latest AMP HEL engagements should be viewed as one step in a much larger transition.
The immediate lesson is straightforward: directed energy has moved beyond laboratory demonstrations and is being used in an operational counter UAS role.
The next phase is scale.
The United States is pursuing more powerful lasers, containerized architectures and systems capable of integration across ground and naval platforms. The Joint Laser Weapon System’s progression from approximately 150 kW toward 300 to 500 kW illustrates the direction of travel.
At the same time, AeroVironment is continuing to develop the LOCUST family. Its newer LOCUST X3 concept is designed around a scalable 20 to 35 kW or higher laser, modular beam director and automated detection, tracking and engagement functions.
That combination of power, mobility, sensors, automation and network integration is likely to be more important than raw laser power alone.
Conclusion: Lasers Are Becoming a Practical Layer of Air Defense
The Army’s use of AMP HEL to defeat three hostile drones at the southern border is significant because it demonstrates directed energy in an actual homeland defense mission rather than only at a test range.
It also highlights why the Pentagon is investing in the technology.
The proliferation of inexpensive drones is creating a volume problem for traditional air defense. Missiles remain indispensable, but using expensive interceptors against every low cost aircraft is difficult to sustain during prolonged or high volume attacks.
Army lasers blast drones because they offer a different economic and operational model. Once deployed, a laser can potentially engage repeated targets without consuming a conventional interceptor after every shot.
The technology still faces atmospheric, power, thermal, tracking and safety constraints. It is not a universal replacement for missiles or guns.
The more realistic future is a layered architecture in which lasers handle suitable low cost targets, electronic warfare addresses other threats, and kinetic interceptors remain available for targets that demand them.
The three border engagements therefore represent more than an isolated demonstration. They are an early operational example of how the U.S. military is adapting air defense to a battlefield increasingly shaped by mass drones, lower cost threats and the need for deeper defensive magazines.
