You talked about predetermining factors, and that brings me to my next question.
Do combatants—those who are really sent into combat—undergo a systematic psychological assessment before and after? I assume that is the case, but I would like your confirmation. Those assessments of combatants when they return from combat could help identify factors that would explain the onset of symptoms that could occur several years later. That would help establish a connection between identifying trauma in combatants when they return from a combat zone and the onset of symptoms later on.