If anyone wants to trace a relative who died in British or Commonwealth service, the Commonwealth War Graves Commission has a good search facility at
www.cwgc.org
The more details you have, the easier the search will be, but if all you have is a surname it will show you all the records it has.
I used it to find details of my great uncle, a lieutenant in the Green Howards, who landed in Normandy two days after D-Day and was killed three weeks later. Now I know where to look I should go and visit his grave...