If you ask me whether or not military training makes you a more disciplined person, I'll say some yes, some no. I think upbringing has alot to do with self discipline. I've seen lots of different people in the military, and only those who came in good, ends up good. I didn't really see any jackasses becoming any better after they have gone through military training.
My 2 years in military makes me appreciate what I have more and realise that it take all kinds of people to make the world go round and that we can never be surrounded by nice people.