Yep; I too interacted with many former POWs who served as Resistance Training instructors at the Air Force Survival School. I have interacted and interviewed these great men and I agree, the brotherhood that exists between them is necessarily insular and, to an outsider, impenetrable.
That’s why I regard the words of those who disparage the behavior of those who endured years of torture as mere bunk. If you weren’t there.. you don’t know.
Amen, brother!