Army chief vows to lead the charge in tackling deadly rise of swarm drone attacks head on

Panicked shouts erupt as a kamikaze drone, just 6th in length but packed with enough high explosives to level a small building, streaks down towards a bus full of soldiers.

With deadly accuracy, the unmanned vehicle punches through the coach and explodes, ripping it apart in an instant and obliterating everything inside.

Recorded only last month, the attack is one out of many drone strikes used by the Azerbaijan military to inflict crippling blows on the woefully ill-prepared Armenians during the month-long clash between the two forces earlier this year.

And it serves as a deadly lesson to other nations of the lethal effectiveness relatively cheap drones can have on the 21st century battlefield – a lesson that Lieutenant Colonel David Butt is all too keenly aware of.

The 41-year-old soldier is the new commanding officer of 12 Regiment, Royal Artillery, one of the British Army’s specialist air defence units.

Operating from the regiment’s base on Thorney Island, it is his job to modernise the group and prepare it to defend against such attacks.

‘The character of conflict has fundamentally changed not just in the last 15 years but in the last five years,’ he says.

‘The cheapness of some of these assets and how they’re readily available from PC World – you don’t want to be firing off a £40,000 missile to take a £100 drone down.

‘It is beholden upon us, and the close air-defence unit for the British Army, to understand how we can meet that threat and deny it in the battlefield.’

Swarm drone ‘threat’

High on the list of concerns is the deployment of large drone ‘swarms’, which could overwhelm current air defence strategies and inflict huge amounts of damage for a fraction of the cost of a traditional airstrike.

The strategy is still in its infancy. But it is something that Russian forces have already come face to face with.

Last year a swarm of 13 drones was launched against Russia’s Khmeimim airbase and nearby naval facility in western Syria in a single assault.

The Russians dealt with the explosive-armed aircraft, either shooting them down or jamming them. But the failed attack was a disturbing close-call.

Portsmouth soldiers are already dealing with the consequences of a swarm drone attack, with troops from 16 Regiment, Royal Artillery – also based at Thorney Island – now deployed in Saudi Arabia to defend oil fields from assault, following a successful raid that crippled a dozen refinery sites last year.

Lt Col Butt said he was determined to revolutionise 12 Regiment to meet the ‘conundrum’ of these future threats head-on.

Grenade-dropping quadcopters

It’s a threat taken seriously by Britain's closest ally, American, who has recently pumped £1bn in new kit to tackle drones after coming under aerial bombardment for the first time in 65 years.

US troops faced waves of grenade-dropping quadcopter drone attacks from Islamic State during the fight to retake Mosul.

‘If I were to describe the ambition that I have for my tenure here with a single word it would be “experimentation”,’ Lt Col Butt adds.