So was the statement directed solely at military or was the "you" collectively including civilians as well? Either way, I would argue that, while we all have the right to keep and bear arms, those who go about their daily business armed owe it to the rest of the public to be properly trained first. I was only half tongue-in-cheek earlier; more gun-friendly civil servants are always a good idea IMHO.
But saying that everyone has a duty to be armed is dangerous; there are too many knuckleheads out there, both in the military and in the general public, who shouldn't be within eight feet of a loaded firearm. Do I believe that an armed populace is a good thing? Yes. Do I wholeheartedly support CCW? Yes. Do I think that everyone should carry? Hell no.