Defence chiefs are pressing ministers for emergency funding to counter a new battlefield threat: fibre-optic drones that Hezbollah has adapted from Ukraine war tactics. The drones, which relay video feeds through hair-thin cables rather than radio waves, bypass electronic jamming systems used by British and allied forces.
Sources familiar with the intelligence say the modified commercial drones have been used by Hezbollah in recent skirmishes on Israel's northern border. The fibre-optic link makes them immune to radio frequency jamming, a key vulnerability of standard drones. The defence establishment fears the technology could swiftly appear in conflicts against British troops, from the Middle East to eastern Europe.
“This is a game-changer,” said one senior defence analyst. “We have spent billions on electronic warfare kits that are now useless against these drones. We need countermeasures that target the optical fibre itself, or new detection methods.”
The Ministry of Defence has acknowledged the threat but has not confirmed any new spending. The Treasury is facing competing demands for cash amid a tight fiscal environment. But defence sources argue the funding is urgent: adapting Ukraine's low-cost drone warfare playbook is cheap for adversaries and expensive to counter.
The technology exploits the same principle used in Ukraine, where both sides have lashed fibre-optic spools to commercial quadcopters. The cable unspools in flight, allowing the drone to fly deep behind enemy lines, transmitting high-definition footage without emitting any electronic signature. They are practically invisible to traditional signals intelligence.
For working families in the North, this may seem a distant concern. But the cost of countering such threats ultimately hits the kitchen table. Defence spending is borrowed or taxed. And the regional inequality in defence procurement contracts means the North often misses out on the high-tech jobs these countermeasures create. The North East and North West have some of the lowest shares of defence spending per capita in the UK.
A former Royal Electrical and Mechanical Engineers officer now working in the defence industry said: “We need to invest in directed energy weapons, fast. Lasers that can burn through the fibre cable. But that means factories, which means jobs. If we put the money in the right places, it could boost the real economy.”
The Prime Minister is expected to face questions on the matter in the Commons this week. Labour's shadow defence secretary has called for a cross-party review of drone vulnerabilities. Union leaders have also weighed in, noting that the demand for counter-drone technology could revive manufacturing in former industrial towns if the government commits to domestic production.
“There are skilled engineers sitting idle in places like Sunderland or Sheffield,” said a Unite the Union spokesman. “They could be building these systems if the government acted. Instead, we are sleepwalking.”
For now, the race is on. Hezbollah's adaptation of Ukrainian tactics is a reminder that modern warfare spreads fast. The question is whether the government can move just as quickly to protect soldiers and the taxpayer's purse.
