Britain's intelligence agencies are scrambling to counter a new drone threat, after sources confirm that hostile states have reverse-engineered Hezbollah's combat drone tactics. The development, uncovered by this newspaper through leaked Ministry of Defence assessments, suggests that the UK's air defences may be vulnerable to cheap, swarm-style attacks.
Internal MoD documents, dated last month, warn that at least two state actors have replicated the low-cost, high-impact drone warfare pioneered by the Lebanese militia during the 2023 cross-border skirmishes with Israel. The report, marked 'Secret UK Eyes Only', details how these states have adapted Hezbollah's tactics of using modified civilian quadcopters to drop munitions and conduct reconnaissance.
One source, a former Royal Air Force intelligence officer with knowledge of the assessment, told me: 'What Hezbollah did was a game-changer. They proved that you don't need a multi-million pound fighter jet to take out a radar station. A $500 drone with a grenade can do the same job, if you have the right tactics. And now our adversaries have that playbook.'
The threat is considered so serious that the Joint Intelligence Committee has raised the alert level for military and civilian infrastructure across the UK. Specific concerns centre on the vulnerability of airbases, including RAF Lossiemouth and RAF Coningsby, which house Britain's Typhoon and F-35 fighters. A second source, a security consultant who advises the Home Office, said: 'These drones can be launched from a van 20 miles away. They fly low and slow, below radar. By the time you see them, it's too late. We need a new defence strategy, and fast.'
Hezbollah's drone tactics, honed in the Syrian war and tested against Israeli forces, were a surprise to Western intelligence. The group used off-the-shelf drones from DJI and other manufacturers, retrofitted with lightweight warheads. Their success in disabling Israeli surveillance balloons and striking military convoys has been studied by state actors including Iran and North Korea. The MoD document, a copy of which I have seen, states: 'The proliferation of these tactics poses a direct threat to the security of the realm. The threshold for a drone attack is now lower than at any point since the Cold War.'
The UK's current counter-drone systems, including the ORCUS jamming system and rifle-mounted disrupters, have been tested against single drones, but not against coordinated swarms. The MoD has quietly funded a crash programme to develop laser weapons and microwave emitters capable of disabling multiple drones simultaneously. But critics say the pace of procurement is too slow.
A former chief of the defence staff, who asked not to be named, told me: 'We are in a race. The technology is evolving faster than our bureaucracy can cope. The MoD is still using spreadsheets and PowerPoint to fight a war fought with code and cheap consumer electronics. It's a scandal waiting to happen.'
The threat is not just military. Police and MI5 are concerned that terrorist groups could copy the same tactics. A senior counter-terrorism officer said: 'A lone actor with a drone could cause mass casualties. The CCTV cameras, the bollards, the armed police. All useless against a three-pound drone flying over your head.'
The government declined to comment on the specific threat but a Home Office spokesperson said: 'We are alive to the emerging drone threat and are investing in new technologies to protect the public. We do not comment on intelligence matters.'
But the documents and sources paint a different picture. They describe a security apparatus that is stretched, reactive and caught off guard by the speed of technological change. The time for bureaucratic caution is over. The drones are coming.
