The best way to make sense of the Second Amendment is to take away all the commas (which, I know, means that only outlaws will have commas). Without the distracting commas, one can focus on the grammar of the sentence. Professor Lund is correct that the clause about a well-regulated militia is “absolute,” but only in the sense that it is grammatically independent of the main clause, not that it is logically unrelated. To the contrary, absolute clauses typically provide a causal or temporal context for the main clause.
The founders — most of whom were classically educated — would have recognized this rhetorical device as the “ablative absolute” of Latin prose. To take an example from Horace likely to have been familiar to them: “Caesar, being in command of the earth, I fear neither civil war nor death by violence” (ego nec tumultum nec mori per vim metuam, tenente Caesare terras). The main clause flows logically from the absolute clause: “Because Caesar commands the earth, I fear neither civil war nor death by violence.
