Mental Health, PTS, Combat, Deploy-ability, a crippled VA system, market externalities, Can you think of a more challenging Gordian knot?

I know the VA and veterans care is a perennial topic here. I was struck by this story on NPR on the way home today. Please give it a listen/read. It is a very challenging topic and I don't know the answer, but I strongly believe there is something wrong here.

This one cuts across politics and normal lines of thinking. Clearly a nation that sends people into harms way bears responsibility for damage incurred both physical and mental. Which part of the national collective should address that damage? The VA? The Military? The civil mental health system?

http://www.npr.org/2015/10/28/451146230/missed-treatment-soldiers-with-mental-health-issues-dismissed-for-misconduct

And earlier year versions of the same theme:
http://www.npr.org/series/11609328/mental-health-care-at-fort-carson