My understanding is that the militia is not intended to deal with antiterrorism - antiterrorism would be the role of mercenary specialists. A militia is, by nature, a defensive force.

The debate over if a militia primarily of light irregular infantry not being able to hold off a foreign attack is, I believe, based on a couple of presuppositions. One is that the militia purpose is to defend and hold territory - I'm not so sure that's the case. I think they are more a poison pill defense - any invader will be attempting to swallow an armed camp. Such an invader would have a counterinsurgency on his/her hands that makes Iraq or Vietnam or Malaysia look like choir practice. Such is, I believe, the reason Switzerland's militia has been so effective - any potential enemy knows that he will have to deal with an automatic weapon behind every tree, rock, barn.... He may make progress fighting a conventional war in the beginning and may even take a great deal of territory but then he will have the problem of holding it when the militia begins to carry out its primary mission - being a thorn in the side of any invader.