And in no way do I mean to disparage from military guys. It's just that their job, for the most part, really does not call for the use of martial arts. You will still find plenty of military members who are trained in martial arts either by the military or private businesses (academies and gyms), but they are your traditional BJJ/Thai boxing/MMA-style, not teh deadly stuffs.
Jocko Willink offers his thoughts as a SEAL on BJJ and martial arts training, he's a good listen on podcasts or other interviews.