Libya in 1911, and published his landmark book Command in the Air in 1921.4 The ideas he expressed were by no means unique to him, but he provided the most systematic—and the most strident, especially by the time of the book’s second edition in 1927—presentation of the apparent strategic logic of air-power.5 This logic was really a continuation of Mahan’s, which was in turn a continuation of Jomini’s.