Skip to content
You can now search across every topic, entity and event.What's new
Autonomous Systems: Land & Sea
3AUG

Belgium's twelve robots come with cables

3 min read
10:02UTC

Belgium's defence ministry tendered on 29 July for twelve underwater vehicles steered down a tether by a human operator, for its divers, bomb-disposal service, mine warfare group and special forces.

TechnologyDeveloping
Key takeaway

Belgium's bomb-disposal teams chose a cable over autonomy, and bought twelve at once.

The Belgian Ministry of Defence issued tender 525183-2026 on 29 July, seeking twelve Underwater Remotely Operated Vehicles for its Engineer Divers, the EOD (explosive ordnance disposal) service, the Naval Mine Warfare Group and the Special Forces Group, together with accessories, spare parts, specialist tools, documentation and training 1. The notice appeared on Tenders Electronic Daily (TED), the European Union's official public procurement journal. Lowdown queried the notice at source. No value appears in it, and none has been reported anywhere.

Read the vehicle type carefully, because it carries the point. A UW ROV runs down a physical tether to a human operator sitting on a boat, who watches its cameras and decides what its manipulator arm touches. That is a different machine from an AUV (autonomous underwater vehicle), which swims a planned mission alone and reports back afterwards. Belgium specified the opposite of autonomy, deliberately.

The reason lies in the work itself. Divers and bomb-disposal teams handle live ordnance, where an error has one consequence and no recovery. A cable gives them three things at once: a data link that jamming cannot cut, a person in the loop at the exact moment the vehicle touches something explosive, and a physical line to drag the machine home when a thruster fails on the seabed. Autonomy buys endurance and area coverage. A tether buys certainty, and around a mine the buyer pays for certainty above all.

That cuts against the direction this beat has been travelling. The allied autonomous mine countermeasures package reached Middle East theatre aboard RFA Lyme Bay in June , and Britain confirmed £90m for three Norwegian-built motherships to carry that kind of kit in July . Both point the same way, towards machines that swim alone. The order actually placed in this ten-day window, by a NATO (North Atlantic Treaty Organisation) member, is for the sort you drive, twelve of them at once. A specification written for tethered vehicles also narrows the bidder pool sharply towards established ROV builders and largely shuts out the AUV specialists. The subsea autonomy market is not one market maturing at one speed; it splits by consequence of error, and disposal work sits on the side that keeps the wire.

Deep Analysis

In plain English

An ROV is a Remotely Operated Vehicle: an underwater robot connected to its operator by a cable, so a person on the surface drives it and sees through its cameras in real time. That differs from an AUV, which drives itself with no cable and no live human steering. Belgium's defence ministry wants twelve of these ROVs for its combat divers, its bomb-disposal service, its naval mine-clearance unit and its special forces, plus spare parts, tools and training. No price tag has been published yet, which is normal at this stage of a European tender.

Deep Analysis
Root Causes

A cable-tethered ROV cannot be jammed the way a wireless link to an autonomous vehicle can, which matters directly when the vehicle is carrying or approaching live ordnance for the Explosive Ordnance Disposal Service and the Naval Mine Warfare Group.

The tether also gives a physical recovery line if the vehicle snags or loses power near a mine, and keeps a named human operator in the loop at the point of contact, a requirement that autonomous mine-disposal systems have not yet displaced across NATO fleets.

What could happen next?
  • Meaning

    Belgium is expanding tethered, human-operated underwater capability across four separate military branches rather than converting to autonomous mine-disposal systems.

  • Precedent

    A NATO member choosing tethered ROVs for live-ordnance work, even as it buys autonomous systems elsewhere, sets a template for keeping humans in the loop specifically at the point of contact with explosives.

First Reported In

Update #10 · Belgium's twelve robots are not autonomous

Tenders Electronic Daily· 3 Aug 2026
Read original
Different Perspectives
Thales
Thales
Thales converted its 6 July engaging accord with Exail into a definitive combination agreement on 30-31 July, but the tender offer for Exail's remaining shares now closes by early 2028, later than July's timetable implied. Thales integrates its new undersea prime while still bidding against Kongsberg and DRASS's 2027 target for the AUKUS Pillar II contest.
University of Limerick
University of Limerick
The University of Limerick tendered on 3 August, the morning this briefing published, for a single coastal and offshore autonomous surface vehicle to survey rather than fight. Where Belgium bought certainty on a cable, a research fleet buys endurance and area coverage, because a lost survey mission costs a re-run, not a casualty.
Ukraine's UGV manufacturers
Ukraine's UGV manufacturers
Ukraine's UGV manufacturers, Trinity Robotics among them, have already run resupply and casualty-evacuation robots at a scale the US Army's new 18-month Project Sustainment award is only now attempting to match. Every month the American programme spends prototyping is a month a wartime supply base keeps compounding its lead in fielded units.
Ocean Infinity
Ocean Infinity
Ocean Infinity's President of Solutions, Joe Robinson, said on 30 July that vessel Needlefish has logged more than 13,000 hours of continuous coastal security work in Kuwait since August 2025, an unaudited company claim. It is commercial security, not mine clearance, and not Omani waters, but the hours logged are real regardless.
Belgian Ministry of Defence
Belgian Ministry of Defence
Belgium's Ministry of Defence published a tender for twelve tethered Underwater Remotely Operated Vehicles on 29 July, for its engineer divers, EOD service, Naval Mine Warfare Group and Special Forces Group. A human on the boat, not an algorithm underwater, decides what the manipulator touches near live ordnance.
American Rheinmetall
American Rheinmetall
American Rheinmetall took the 18-month Project Sustainment prime slot on 31 July, fielding hybrid-powered autonomous resupply vehicles for company-sized element sustainment missions with Harbinger, Forterra and Primordial Labs, without disclosing a contract value. The award tests whether an Army acquisition office can match the production tempo Ukrainian UGV makers already run at industrial scale.