I think that Col's general point is that the use of the military is far from a last resort, these days. It's used very often, indeed, and in wars of agression in far away lands, not in the defence of the home community.The Military is the attack dog of the state its last defence the contiuation of politics by other means.
The other point he makes is that the kids sent off to fight and die (or get poisoned by depleted uranium) are predominantly poor kids from poor areas who have little other choice, and who are aggressively courted by a military machine who make the most of their lack of other decent life choices.
@1927 it seems pretty clear to me that Col's argument is not naive, and it doesn't show a lack of understanding to me. It's quite clear.
The self-defence line of argument can't legitimately be used to defend the actions of military as it stands today. Because it's primary purpose is not to defend the nation, but to fight dodgy wars of aggression in foreign lands for spurious reasons.
I'm pretty sure that no-one is arguing that self-defence in the name of a community under attack is wrong, here. The col certainly wouldn't argue that.



could the kids not just enjoy learning to fly?