U.S. military used laser to take down Border Protection drone, say lawmakers
The US military used a laser directed energy weapon — the LOCUST system developed by AeroVironment — to shoot down a Customs and Border Protection (CBP) drone over southwest Texas near Fort Hancock
The CBP drone had entered military airspace without notifying the relevant authorities; the military assessed it as a threatening unmanned aerial system and engaged it
The incident followed another episode two weeks earlier when a CBP laser mistakenly shot down party balloons in Texas, causing temporary closure of El Paso's airspace
The FAA, CBP, and Pentagon acknowledged the incident but raised concerns about lack of interagency coordination between the Department of Defense (DoD), the Department of Homeland Security (DHS/CBP), and the Federal Aviation Administration (FAA)
Democratic lawmakers criticised the incident as reflecting broader training and procedural gaps in counter-drone operations at the US border
Directed Energy Weapons (DEW) — High-Energy Lasers
Directed Energy Weapons (DEWs) use focused electromagnetic energy — laser, microwave, or particle beams — to damage or destroy targets. High-Energy Lasers (HEL) are the most operationally mature category of DEW and are increasingly being deployed for counter-drone (counter-UAS) missions.
Key Details
- LOCUST laser system (AeroVironment): 20-kilowatt-class high-energy laser designed specifically for counter-UAS; vehicle-mounted on JLTV (Joint Light Tactical Vehicle) and Infantry Squad Vehicle
- System features: 360° targeting gimbal (turns 100°/second), startup in 15 minutes, single operator, operable via Xbox gaming controller
- Power classification: 20 kW is at the lower end of HEL weapons; higher-power systems (100 kW+) are in development for anti-aircraft and anti-missile roles
- HEL advantages over kinetic weapons: No ammunition cost per shot (just electricity), speed of light engagement, scalable lethality, lower collateral damage risk in some contexts
- HEL disadvantages: Affected by atmosphere (fog, rain, dust), power supply dependency, beam dispersion over distance
- Other US DEW programmes: HELIOS (Navy, 150 kW), IFPC-HEL (Army, 50 kW+), THOR (Air Force, microwave-based counter-drone)
The LOCUST system's operational deployment — and its accidental use on a friendly drone — illustrates the real-world challenges of fielding DEWs where rules of engagement and interagency protocols are still being developed.
Counter-Unmanned Aerial Systems (C-UAS) Framework
The proliferation of commercial and military drones has created a new threat vector for militaries, security forces, and critical infrastructure. Counter-UAS (C-UAS) policy in the US and globally is evolving rapidly.
Key Details
- C-UAS methods: Electronic jamming (GPS/RF disruption), cyber takeover (spoofing), kinetic interception (missiles, projectiles), directed energy (lasers, microwaves), net capture systems
- US C-UAS authority framework: Only designated agencies (DoD, DHS, DOJ, and certain state entities) have legal authority to engage drones over US territory
- FAA role: Primary authority for civil airspace; any military airspace restrictions must be coordinated through NOTAMs (Notices to Air Missions)
- The incident revealed a critical gap: The CBP drone lacked proper airspace coordination protocols, and the military's engagement authority did not distinguish between friendly and hostile drones in real time
- India's C-UAS framework: Anti-Drone Technology under the National Counter Rogue Drone Guidelines; DRDO developed the anti-drone system "D4" — a hard-kill + soft-kill system deployed at airports, military installations, and high-value events
The US incident is a case study in C-UAS governance failure — relevant for India's own challenges with drone intrusions at sensitive sites (Jammu airbase attack, 2021; drone intrusions in Punjab border zones).
India's Counter-Drone and Drone Policy Framework
India has faced real operational C-UAS challenges — particularly from cross-border drone operations linked to arms and drug smuggling, and drone-based attacks. India's response combines technology development, regulation, and inter-agency coordination.
Key Details
- Drone Rules, 2021: Replaced earlier UAS Rules; introduced digital sky platform for permits; classified drones by weight (nano, micro, small, medium, large)
- National Counter Rogue Drone Guidelines (2019): Designated agencies for C-UAS operations at different site categories
- DRDO's D4 (Drone Detect, Deter and Destroy): Anti-drone system combining radar, RF detection, electro-optical/infrared camera, and hard-kill (laser) + soft-kill (jammer) capabilities; deployed at airports and key installations
- Jammu airbase attack (June 2021): First confirmed drone-based attack on Indian military facility — prompted accelerated C-UAS procurement
- BEL, L&T, and Bharat Forge are among Indian firms developing domestic C-UAS solutions
- Drone Shakti initiative (Union Budget 2022-23): Promotes drone startups; PLI scheme for drones
- The Armed Forces have sought procurement of DEW systems including high-energy lasers for forward deployment
India's drone threat environment — from cross-border smuggling to military strike risk — makes C-UAS policy, technology, and inter-agency coordination directly analogous to the US case studied here.
Military Airspace and Civil-Military Coordination
Airspace governance involves coordination between civil aviation authorities and military aviation authorities. Breakdowns in this coordination can lead to incidents like the CBP-DoD friendly fire event.
Key Details
- In the US, the FAA manages civil airspace; military uses Special Use Airspace (SUA) — restricted, prohibited, or warning areas
- NOTAMs (Notices to Air Missions): Mandatory notifications for airspace restrictions; the CBP drone's entry without NOTAM coordination triggered the engagement
- In India, the Directorate General of Civil Aviation (DGCA) manages civil airspace; Indian Air Force manages military restricted zones
- Air Defence Identification Zone (ADIZ): Buffer zones where aircraft must identify themselves before entering sovereign airspace
- India's Digital Sky Platform under Drone Rules 2021 creates automated airspace management — including no-fly zones around sensitive sites (airports, military areas, borders)
- The US incident resulted in a four-month expanded airspace restriction over Fort Hancock, Texas — illustrating cascading effects of poor coordination
Airspace sovereignty and civil-military coordination in drone operations is an emerging Mains topic, relevant to India's border management, anti-terrorism operations, and drone regulatory framework.
- Weapon used: LOCUST laser directed energy weapon by AeroVironment; 20-kilowatt class
- Platform: JLTV (Joint Light Tactical Vehicle) and Infantry Squad Vehicle
- Target: CBP (Customs and Border Protection) drone, southwest Texas near Fort Hancock
- Agencies involved: DoD (Pentagon), DHS/CBP, FAA
- India's C-UAS system: DRDO's D4 (Drone Detect, Deter and Destroy) — hard-kill + soft-kill
- Drone Rules 2021: Governs drone classification, registration, and airspace in India
- Jammu airbase drone attack: June 2021 — first confirmed drone-strike on Indian military facility
- DEW key characteristic: Speed-of-light engagement; no ammunition cost per shot
- US C-UAS legal authority: Restricted to designated agencies under DoD, DHS, DOJ
- India's Digital Sky Platform: Automated drone airspace management including no-fly zones