"In its proper constitutional sense, the term [militia] means all the able-bodied people who can be trained and disciplined to act in the community’s defence when it’s attacked. Since it encompasses every able-bodied person, it does not refer to those—such as the police, the military, or even the National Guard—who formally compose the official defence forces of the nation. Every citizen able and willing to act in an emergency becomes a potential defender against attacks aimed at the general population."