There's a good article in this month's VFW magazine on the Army and Marine Corps trying to get to the bottom of what's behind the rash of military suicides in the last few years so they can be prevented. It's in PDF form so I can't c&p quotes but if you're interested, please go read it. You can enlarge the print.
What I think is a good point - one of the doctors interviewed wants to change the term "PTSD" to "PTS" because he feels the word "disorder" implies weakness, which is shameful to male service personnel and is a factor in not seeking help. PTS is not a weakness. He may be on to something. The services are working to change this perception.
I learned from the article, and am proud of the way my Marine Corps is trying to handle teaching and counselling with more or less a squad-level personal approach as opposed to impersonal Powerpoint presentations in an auditorium.