While taking this opportunity to 'demonstrate' your point of view (and how it's justified) concerning military/defense, it is just an opinion. I'd say it's more of a cultural sickness, than a human necessity. At least most people claim to believe in the teachings of Jesus and Gandhi, even if they can't find a way to walk the walk (just talk the talk).

Considering the worst mass murderers, despots, and warmongers of history were usually devoutly religious, I really, really don't think you want to play the religion card here. Heck, by far our most Jesusy president, GWB, sent over 100,000 Iraqis to their deaths by starting a major conflict with them with trumped up intel and knowing full well the civilian cost would be huge. Hitler considered himself a good Christian. Putin is a good Christian loved by the Orthodox church. Iran beheads women who supposedly cheat on their husbands yet as a theocracy they follow Allah's benevolence. The religious middle-east in general is humanity's armpit. Need I go on?

>>> Hitler considered himself a good Christian

Well, sort of a nitpick but Hitler and religion is a bit more complicated than that: http://en.wikipedia.org/wiki/Religious_views_of_Adolf_Hitler

> more of a cultural sickness, than a human necessity.

Probably not: http://en.wikipedia.org/wiki/Gombe_Chimpanzee_War