In Muscarello v. United States, 524 U. S. 125 (1998), in the course of analyzing the meaning of “carries a firearm” in a federal criminal statute, JUSTICE GINSBURG wrote that “surely a most familiar meaning is, as the Constitution’s Second Amendment . . . indicate: ‘wear, bear, or carry . . . upon the person or in the clothing or in a pocket, for the purpose . . . of being armed and ready for offensive or defensive action in a case of conflict with another person.’” Id., at 143 (dissenting opinion) (quoting Black’s Law Dictionary 214 (6th ed. 1998)). We think that JUSTICE GINSBURG accurately captured the natural meaning of “bear arms.” Although the phrase implies that the carrying of the weapon is for the purpose of “offensive or defensive action,” it in no way connotes participation in a structured military organization.