In the case of United States v. Miller, decided in 1939, the Supreme Court addressed the Second Amendment's scope regarding the right to bear arms. The case involved Jack Miller and Frank Layton, who were charged with transporting a sawed-off shotgun across state lines, violating the National Firearms Act. The Court ruled that the Second Amendment does not guarantee an individual right to possess any type of firearm. Instead, it emphasized that the right to bear arms is linked to the maintenance of a well-regulated militia, thus upholding the federal law restricting certain firearms.