...a matter of history, morality, and law – a coherent difference between a state of war and a state of peace. This need not be a “third way,” whatever that means, as the op-ed suggests. Existing international law offers at least some useful criteria, not only the intensity of hostilities, but also the ability to name a particular state or organization as an enemy, and the existence of an enemy organization organized enough to itself be capable of (even if
unwilling to) attending to the law of war. But it...