Military Head

[Pi]

I'm at the local "Westpoint" (read Royal Military Academy here in Belgium). There are a lot of crazy people in the army. And most of the more specialised troops (SF, Para-Commandos, Recce,...) are not normal, because they have to resist to conditions a normal person couldn't resist. And in the Army they are trained not to fail and this also means getting broken and being rebuild just as Bruce said.
But it's necessary to get the human resources you need an be certain your men are reliable in any condition at any moment and this means sometimes risking your life. If you can't trust your buddy, if you can't forget about death then you can't fight your war.
But the army doesn't want (too much) Rambos. Soldiers have to listen to their commander. Because soldiers shouldn't think too much. Maybe this sounds weird. But war is very complexe on the field. It isn't just marching and killing. And there are men (NCO's and officers) who will think for you and you must follow them to survive without thinking about right or wrong.
So yes, most of us are kind of crazy and to fight a war it's necessary!