The Portsmouth-based HMS Diamond has been helping out a French tanker as part of her Mediterranean deployment.
Since leaving her home base of Portsmouth, HMS Diamond has been at the forefront of operations.
The naval ship is currently supporting Op RECSYR, which stands for Removal of Chemical Weapons from Syria.
Petty Officer Scott Gratton, the Chief Bosun’s Mate who has responsibility for all seamanship evolutions, said: “Replenishing whilst underway is widely considered to be the most dangerous peace time evolution a warship will carry out.
"It would be akin to driving alongside a petrol tanker on the motorway refuelling your car for around three hours.”