That question begs the question, "highly trained in what?"
An increasing amount of military training has no correlation to civilian jobs or careers. Forty years of outsourcing has made sure of that.
Helicopter pilots are a good example. For almost all of them, their last flight in a helicopter was in the military because there just aren't that many civilian helicopter jobs, much less ones that pay well.
Gunners, artillery, and such also have specialized skills that no one wants outside of the reserve unit they may join.
That's my point.