42 Commando practises a dawn raid (Picture: Royal Navy).
Royal Marines have been testing their rescue capabilities during an exercise in the USA.
They joined up with their US counterparts at Quantico, Virginia, for Exercise Lightning Angel.
Lima Company from 42 Commando battled through a replica developing world village to hone their skills in retrieving 'isolated personnel', the Royal Navy said.
This could refer to downed pilots, trapped British citizens or troops cut off from their comrades.
In a real-world scenario, the Marines would then escort or carry injured personnel back to either of Britain's two new aircraft carriers.
Lima Company is permanently assigned to aircraft carrier HMS Queen Elizabeth which is currently off the coast of Florida undergoing fast jet trials.
The Marines have come ashore to undergo several weeks of training.
The initial practice of unarmed combat will be followed by two weeks of live firing.
Warrant Officer 2nd Class Neil Smith said: “It’s great to be back in Quantico to further our skills – the training facilities and terrain here provide a great environment for doing just that."
Meanwhile, the Marines have also been renewing a long-standing sporting rivalry with their American counterparts.
Alongside sailors from the Royal Navy, they were invited to take part in the Marine Corps Marathon.
The Brits posted a faster combined time for the 26.2-mile challenge around Virginia - lifting the Challenge Cup for the 28th time.