Why are non-christian soldiers contributions never covered in movies based on world wars?

I don't think that it has anything to do with Religion per se I think it has to do with what you want the public to know and don't know. I have two Uncles who were in the Tuskegee Airmen and how long did it take not only for them to get their story told but for them to be recognized by the goverment??? They were just given their medal of Honor this year in fact in the last 4 months. Most of them are dead why did it take so long for this to happen?? Because they weren't white not because they weren't Christians.