Good research topic HBoles! My father is a survivor with combat PTSD (Vietnam). I can't say that was my only trauma but it is very clear that his service related injury had quite a bit to do with my current diagnosis. Apparently dad was also traumatized at a very early age by his father (WWII, Korea) in addition to his service in Vietnam (and of course the return home). This pattern goes back for quite some time in my family (every American war since the Revolution).
I know for a fact that I am a very different person today than I would have been as a result of learning about IED's, torture, hand to hand combat, psyops, etc. at such an early age. I also seriously doubt that my father would have grown up breaking other kid's fingers and such if Grandpa Barber had not taught him to. Grandpa Barber would not have been like that if he had not both served and been abandoned by Great Grandpa Barber (WWI) who was also probably traumatized and just unable to be there for the family.
I seriously doubt any of that misery would have happened if the US had been willing to take care of PTSD back then instead of shooting them (WWI), slapping them (WWII) or ignoring them (Vietnam).
This stuff seriously hurts families for generations and its about darn time that someone wrote about it.