The U.S. Army is approaching a significant milestone in its pursuit of directed-energy weapons, nearing a contract award for its first operational high-energy laser system designed to counter drones. This development signifies a potential transition for laser technology from testing phases to permanent battlefield deployment.
The system, known as the enduring high energy laser (E-HEL), is intended to provide U.S. forces with a novel method for engaging inexpensive aerial threats that can otherwise overwhelm traditional air defenses. The Army's acquisition chief, Lt. Gen. Frank Lozano, indicated in July that contract negotiations were underway with AeroVironment for the system, described as the service's first program of record for a family of high-energy laser systems. Testing at White Sands Missile Range in New Mexico has reportedly shown "a lot of recent promise and capability."
This move by the Army aligns with broader trends within the Pentagon's approach to directed-energy weapons. The Air Force has disclosed its use of compact laser weapon systems at overseas locations for drone defense, while the Navy has been testing its high energy laser with integrated optical-dazzler and surveillance (HELIOS) system aboard destroyers for several years. These efforts collectively suggest the U.S. military is entering a new phase in its investment and integration of laser technology after decades of research and development.
The proliferation of affordable drones on modern battlefields, notably seen in conflicts in Ukraine and the Middle East, has accelerated the military's need for innovative defense solutions. Traditional missile interceptors, which can cost hundreds of thousands or even millions of dollars, are becoming increasingly costly to deploy against swarms of low-cost unmanned aerial vehicles.
Global Pursuit of Laser Technology
While the U.S. pushes forward, other nations are also advancing their directed-energy capabilities. Israel has begun deploying its Iron Beam laser air defense system, developed with U.S. support, to counter threats like rockets and drones. China has also showcased a growing array of military laser systems and counter-drone weapons.
Despite the current momentum, the path to operational laser weapons has been long and challenging. Early U.S. programs encountered significant technical hurdles related to power generation, beam control, thermal management, and ensuring reliability in diverse operational environments. Experts note that making laser systems workable as weapons requires addressing not just the laser itself, but also factors like environmental resilience, operator training, and field maintenance.
Limitations and Future Role
Even as these systems become operational, they are not expected to entirely replace traditional missile defenses. Lasers are primarily line-of-sight weapons, limiting their engagement range to targets within the operator's direct view. This contrasts with missiles, which can engage threats over the horizon.
Therefore, laser weapons are anticipated to serve as an additional layer within the U.S. air defense architecture, complementing kinetic interceptors. They are likely to be most effective against drones and other aerial threats that enter a defended area, while missiles will continue to be crucial for long-range engagements and operations in adverse conditions.
Beyond lasers, the Pentagon is also exploring other directed-energy solutions, including high-powered microwave systems, which can disrupt the electronics of multiple drones simultaneously. Investments are also being made in radio-frequency technologies to jam drone communications and navigation systems.