The object of this clause [the right of the people to keep and bear arms] is to secure a well-armed militia.... But a militia
would be useless unless the citizens were enabled to exercise themselves in the use of warlike weapons. To preserve this privilege, and to secure to
the people the ability to oppose themselves in military force against the usurpations of government, as well as against enemies from without, that
government is forbidden by any law or proceeding to invade or destroy the right to keep and bear arms.