The character of war is rapidly changing. The increasing availability of evolving technology confounds previous frameworks for military operations. Socioeconomic factors and demographic shifts complicate manpower and force generation models for national defense. Ubiquitous connectivity links individuals to global audiences, expanding the reach of influence activities. And a renewed emphasis on strategic competition enhances the scope of military action below the threshold of violence. This is the world that Mick Ryan explores in War Transformed: The Future of Twenty-First-Century Great Power Competition and Conflict.