Hire a vet
When I have a job opening, I look for candidates possessing the following qualities:
It's my opinion that individuals who serve in the military have tendencies toward the four qualities listed above. In addition, they tend to have the following qualities:
It's pretty simple. Hire a vet.
Having experienced a trauma and getting treatment for symptoms associated with the trauma would not take away any of the qualities mentioned above. In fact, persons who have been traumatized may be even more loyal to those who prove to be safe and secure.
But don't sneak up behind them and spook them.