I believe their claims were that even members of the National Guard had no right to own weapons, the weapon had to be used "in the national guard".<quoted text>
The petitioners tried to CLAIM that the Second Amendment protects only the right to possess and carry a firearm in connection with militia service. They were "shot down".
That said, I do think the collective right exists alongside the individual right, and a state having its own WMD is not verboten.
If Texas had nukes, federal power would be greatly restricted as the 10th Amendment is supposed to be :)