Last Update: 09/17/2026 at 4:00 PM EST

Passive Counter-Drone Detection Goes Live

Coverage from GOV.UK, Dronefront, and others

What’s
Going On
Passive Counter-Drone Detection Goes Live topic image

Project Halo Shield is operational at Warminster Garrison as a passive counter-drone capability.

Start Here2 of 3 articles

A few articles that between them cover the whole topic, picked by the role each one plays.

If you read one thing

UK Army Base Deploys Layered Passive Counter-Drone Detection

It provides the clearest overall account of Halo Shield’s layered detection system, initial results, and possible wider deployment.

GOV.UK · 09-14-2026

The evidence

British Army Deploys Passive Drone Detection at Warminster

It adds a distinct account of the operational results and the policy limits preventing active drone defeat.

Forces News / Tom Sables · 09-14-2026
Where It Stands

The forces this coverage keeps returning to, and which way each has moved.

Layered passive detection is operational

Project Halo Shield is operational at Warminster, combining RF sensing, command-and-control software, and AI-enabled optical surveillance into a layered airspace picture. It can detect, locate, classify, and support identification of drones and potentially their controllers without active emissions.

Drawn from 3 articles

Initial monitoring is validating wider deployment

The first 17 days of live monitoring produced 29 drone position alerts at ranges up to 5 kilometers, providing an initial operational basis for assessing the capability. Results are informing possible expansion to other UK garrisons and the addition of radar and acoustic sensors.

Drawn from 3 articles

Detection has not yet translated into active defeat

Halo Shield currently provides detection and monitoring rather than an integrated means of disabling drones. UK permissions and policies governing RF information collection and the use of effectors remain constraints on attaching active counter-drone responses.

Drawn from 3 articles

Key Numbers

Figures the coverage reports, each traced back to the sentence it came from.

17 days

duration of live monitoring

first monitoring period

During the first 17 days of live monitoring, the system recorded 29 drone position alerts, with detections up to 5km away. None of the alerts represented a threat to the base.

GOV.UK and 1 other article

29 alerts

drone position alerts recorded

during the first 17 days of live monitoring

During the first 17 days of live monitoring, the system recorded 29 drone position alerts, with detections up to 5km away. None of the alerts represented a threat to the base.

GOV.UK and 1 other article

5km

maximum detection distance

drone detections

During the first 17 days of live monitoring, the system recorded 29 drone position alerts, with detections up to 5km away. None of the alerts represented a threat to the base.

GOV.UK

A fourth RF sensor

sensor identifying the drone and its controller

Dedrone’s system uses three RF sensors to triangulate drone positions across the garrison. A fourth RF sensor identifies both the drone and its controller.

GOV.UK

three RF sensors

sensors used to triangulate drone positions

across the garrison

Dedrone’s system uses three RF sensors to triangulate drone positions across the garrison. A fourth RF sensor identifies both the drone and its controller.

GOV.UK

How It Developed
2 Day Timeline
Sep 14Sep 15
The Story So Far
No material change

No material real-world change is evidenced since the previous state; the Topic remains centered on Project Halo Shield’s passive counter-drone deployment at Warminster Garrison and its ongoing evaluation for wider use.

Previously

The British Army has deployed Project Halo Shield at Warminster Garrison as a passive counter-drone system combining radio-frequency sensing, command-and-control software, and optical detection. It recorded 29 drone position alerts during its first 17 days of monitoring, detecting aircraft at ranges of up to five kilometers and supporting analysis of potential controllers. The trial will inform possible deployment at other UK garrisons, although current permissions and policies limit the use of attached systems to detection rather than disabling drones.

All the Evidence3 articles

Every article behind this topic, ranked by CI Score.

Important3 articles · CI Score 60 and above
GOV.UK
UK Defence Innovation and Army Innovation deployed Dedrone and Quell passive counter-drone systems at Warminster garrison in March 2026, recording 29 non-threatening alerts during 17 days of monitoring.
9/14/2026 • Counter-Drone & Airspace Security • General
Dronefront / Ethan M. Encarnacion
The British Army deployed Project Halo Shield at Warminster Garrison in the United Kingdom, where passive sensors recorded 29 drone alerts during 17 days of monitoring.
9/15/2026 • Counter-Drone & Airspace Security • General
Forces News / Tom Sables
The British Army's Experimentation and Trials Group deployed Project Halo Shield for passive counter-drone monitoring during 17 days at a Warminster base.
9/14/2026 • Counter-Drone & Airspace Security • General