Occasionally, militaries during times of peace achieve major warfighting innovations. Terry Pierce calls these 'disruptive innovations'. The more common innovation phenomenon, however, has been that of integrating new technologies to help perform existing missions better and not change them radically. The author calls these 'sustaining innovations'. The central theme of this book is that senior leaders who have successfully managed disruptive innovations disguised them as sustaining in order to ensure their innovations survived. The recent innovation history suggests two interesting questions. First, how can senior military leaders achieve a disruptive innovation when they are heavily engaged around the world and they are managing sustaining innovations? Second, what have been the external sources of disruptive (and sustaining) innovations? This book is essential reading for professionals and students interested in national security, military history and strategic issues.