VEry rarely is a soldier, Marine returned home after War Trauma. Usually they may be given a minor tranquilizer, if that and sent back to “the front” ( whatever that is now)...Most often, troops don’t know themselves they are in shock and most often do not want to leave combat and leave their brothers in arms.
We only have a very very very very small percentage serving now...so there are too many and too long deployments. THAT would be the area to intervene with the least problems...but we can’t cause too many rappers are running arond with their pants hangin low and being tough at the shopping malls!
We can't keep deploying a limited number of the same troops up to 4-5 times per enlistment into combat for a year at a time and not expect major cognitive issues. We need a military with a one deployment per enlistment policy into combat with a 18 month limit.
We can do that but congress has held the End Troop Strength numbers at 1996 manpower levels in the active forces since 1996. You can't run a machine without needed downtime nor can you a human being.