Welcome and thank you for your service. My father is a Korean War vet. Personally I think he suffered from un diagnosed ptsd. He was in the USAF in a medical unit, aka "flight", stationed in Japan. His unit was bombed while in Korea and no one survived but my Dad, because he was back in Japan for a training. He never told my mother about this and only told me last year. I'm 50. PTSD would explain much of his behavior toward us when I was growing up. Again, welcome to this site I find it very helpful.