Unless you put it in your question, we can’t tell what country you are in. It is the most frustrating thing Y!A does. Even if you go in through Y!A UK, Y!A Australia, Y!A Canada or ordinary Y!A, all the questions in English go into one big “pot”. I’m in California, for instance.

If you are in the USA and your parents are still alive, they are the Next of Kin and they can write for records. The NARA limits who can ask to next of kin for privacy issues.

If your parents pass on, you become one of the NoK, I think, and you can write. I do not know how stringent NARA is about lying about your parents’ deaths. It may occur to you to try. I do not suggest it, but I mention it.

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If you are in the UK, Italy, France, Germany, Norway, Austria, Poland, Canada . . . (All of them had armies in WWII), please delete your question and try again, this time mentioning a country.