The Army could phase out petrol and diesel vehicles in a bid to attract ecofriendly recruits, the Chief of the General Staff has said.

Gen Sir Mark Carleton-Smith said today’s military equipment would probably be the last to be “dependent on fossil fuel engines”, and that a move toward clean energy would be beneficial logistically and put the military “on the right side of the environmental argument”.

Speaking at a defence and security event in London, he said: “The Army is leading defence on sustainable energy solutions, both at home and when deployed overseas. We may be at the inflection point of how we power our next generation of vehicles. Our current equipment programme is possibly the last to be dependent on fossil fuel.”

Calling on British industry to lead the way on developing new sources of energy for the military, he added: “The challenge, and genuine commercial opportunity, is to aim high and lead the world in the development of military equipment which is not only battle-winning but also environmentally sustainable.

"That gives the British Army considerable operational benefits, such as reducing our logistical drag, and also puts the Army … on the right side of the environmental argument, especially in the eyes of that next generation of recruits that increasingly make career decisions based on a prospective employer’s environmental credentials.”