A Cornish cliff-top fort has been turned into a disaster scene to stage a military training exercise.
Trainee sailors from HMS Raleigh have been dealing with a simulated humanitarian crisis at the Ministry of Defence fort at Tregantle in Whitsand Bay.
The weekend exercise included dealing with casualties and locating civilians.
Lt Cdr Jo Wall said grit, determination and teamwork was essential.
The officer, who oversees specialist training at HMS Raleigh, told BBC News the skills learned by the trainees at Tregantle Fort would be vital for any real emergencies.
The fort was built in the 19th Century to deter the French from attacking British naval bases.