Now that the conquest of the air has become an accomplished fact and the adaptability of aircraft to hostile operations has been fully demonstrated, the question of the necessary modifications of, or additions to the laws of warfare becomes a matter of present interest and importance. It would be as idle as presumptuous for any writer—no matter what his reputation or ability—to attempt the formulation of a complete code that takes into account a “law of the air.” Such a work could be satisfactorily accomplished only by an international conference after an exhaustive discussion and a nice adjustment of belligerent and neutral interests. Possibly the Third Hague Conference, scheduled to meet in 1915, may undertake the work; but wars do not wait on conferences, and hence a study of the subject in the light of recent developments may serve a useful purpose.