Charlton the dog was involved in a simulated exercise on board the ship (Picture: MOD).
HMS Diamond got the chance to carry out an unusual training exercise when Charlton hopped aboard.
Charlton is a drug detection dog, and he carried out a search for drugs in a simulated exercise.
His trainer Natalie emphasised how this sort of training is not a regular occurrence for her or Charlton:
"We don't usually get this type of opportunity.
"It was a great piece of environmental training for us both, working on board ship is a rare occurrence for us and it was a hugely beneficial exercise."
HMS Diamond anchored off the coast of Cyprus where they went ashore to work alongside the RAF Air Component Command.
It also gave them a chance to pick up supplies to help them continue their mission.
The ship has been helping NATO track air movements in the Gulf region, in the ongoing fight against so-called Islamic State.