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Drones: Industry & Defence
26OCT

GEREON ran six days in the Mojave

2 min read
15:07UTC

ARX Robotics UK ran eight GEREON robots through six continuous days of a US Army exercise at Fort Irwin, alongside British troops, the Defense Post reported on 11 August.

TechnologyDeveloping
Key takeaway

Eight ARX GEREON robots survived six unbroken days of a US Army desert exercise.

ARX Robotics UK ran eight GEREON uncrewed ground vehicles (UGV) through Project Convergence-Capstone 6, the US Army-led exercise at Fort Irwin in California's Mojave Desert, working alongside British troops, the Defense Post reported on 11 August⁠1. The robots ran for six days without a break, on scouting, electronic warfare, counter-UAS (defence against uncrewed aircraft), logistics and casualty evacuation, with minimal human intervention through heat, dust and broken ground⁠2.

Most robot demonstrations last a scripted afternoon. Six unbroken days in a desert is long enough to surface the dull failures that kill fielded fleets: grit in the drive train, thermal throttling, batteries degrading, the tenth recovery of the day when a crew is already tired. Nothing in a procurement paper predicts those. Only running the thing does.

ARX has three production commitments to sell against. It opened a £45m UK GEREON line with Devon's Supacat under a British Army contract in April, expanded its Ukraine fleet fivefold in May, and founded ARX Industries with Ukraine's Roboneers in June to build in Germany and Ukraine. Factory capacity built that fast needs orders behind it, and an allied exercise at Fort Irwin is where the officers who write those orders stand and watch.

Deep Analysis

In plain English

GEREON is a robot ground vehicle, roughly the size of a small all-terrain vehicle, built by a British company called ARX Robotics UK. Eight of them spent six days working alongside British and American troops in the Mojave Desert in California, doing jobs like scouting ahead, jamming enemy signals, spotting drones, carrying supplies and evacuating casualties, mostly without a human directly controlling them. The trial was part of a big US Army exercise called Project Convergence, which tests how new technology performs alongside real soldiers in realistic conditions.

Deep Analysis
Root Causes

ARX Robotics UK already had a domestic manufacturing base through its £45m Task Force RAPSTONE contract with Supacat before this exercise, which is why GEREON could be deployed to a US Army exercise as a working platform rather than a prototype: British production capacity meant a unit was available to send.

Minimal human intervention across scouting, electronic warfare, counter-UAS, logistics and casualty evacuation in one continuous exercise reflects a deliberate design choice to prove multi-role capability in a single trial, since separate single-mission trials would not demonstrate the platform's ability to switch tasks without reconfiguration.

What could happen next?
  • Opportunity

    A successful multi-role trial at a major US Army exercise strengthens GEREON's case for wider British Army adoption beyond the existing Task Force RAPSTONE order.

First Reported In

Update #11 · Chinese cameras in the Navy's robot boats

The Defense Post· 12 Aug 2026
Read original →
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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.