I'm sure you're also familiar with the rest of Amendment 2.
The right of the people to keep and bear arms shall not be infringed.
It's obvious that the militia has to keep and bear arms.
As in a well regulated militia or government shall not infringe on the right of the people of the state to keep and bear arms., i.,e.: defend themselves (as goes for that well regulated and armed militia of that state). For the people and by the people is the theme the constitution, right?
Marcia