My father served in the Korean war. He died when I was in High School but, before that, I only heard mention it a few times in my entire life and then only briefly. I remember him talking about working on tank retrievers, which is where he got his heavy machinery skills. He could fix anything he got his hands on. Oddly, I also remember him talking with another veteran about villagers eating dog meat. He never once spoke about anything to do with the actual war itself.
Many years after his death, my cousin found a photo album of his and brought it over. It was full of pictures of Japan. I never even knew he'd been there.