Unlike the United States, Canada and Australia gaining access to the service records of WWII UK veterans, whether they be alive or dead, killed in action or prisoner of war, is not the easiest thing. The Army, Royal Navy and the Royal Air Force, as components of the Ministry of Defence, must comply with the UK Data Protection Act of 1998. If you are not next-of-kin it can be done but will require the ability to locate the veteran and have him apply for his own records or, more often than not at this late date, locate his family and have them apply on your behalf. This can get very expensive and involves applying for birth, marriage and death certificates from the General Register Office, not always with positive results. If you are next of kin, and can prove it, then your options change. Keep in mind that in WWII most next of kin would either be parents, spouses or siblings and these are the names the relevant military records will have on file. In most cases parents and spouses have passed away and it is up to you to show the connection. If you visit this site: Service records you can access the required forms and depending on the branch of service your relative served in (click on logo of branch of service) obtain the necessary address where to send your inquiry. What if your relative was not a British serviceman but was part of the many exile militaries (eg. Polish, Czech etc) based in the UK in WWII? Click on the link that says "Non UK and Commonwealth Service Personnel" for some additional information and addresses. The personnel at these agencies are hardworking people who do their best to get you the information you have requested but as is the case in this age of cutbacks they are trying to do more with less. I guess that's the nice way of saying you'll be waiting a while as the internet has opened up a whole new world for genealogy and the MOD has stacks of requests from next-of-kin.