Federal law prohibits any person convicted of a "misdemeanor crime of domestic violence" from possessing a firearm. 18 U. S. C. §922(g)(9). That phrase is defined to include any misdemeanor committed against a domestic relation that necessarily involves the "use . . . of physical force." §921(a)(33)(A). The question presented here is whether misdemeanor assault convictions for reckless (as contrasted to knowing or intentional) conduct trigger the statutory firearms ban. We hold that they do.