Book excerpt: The Department of Defense (DoD) has identified three gaps in U.S. knowledge about Chinese military power. First is PRC military power juxtaposed to that of Taiwan. There is much more the United States can learn about both sides' ideas of statecraft, their approaches to the use of force, their perceived vulnerabilities, and their preferred operational methods, as well as about the political and military organizations that produce military assessments and plans. Second are intangible PRC capabilities -- training, logistics, doctrine, command and control, special operations, and mine warfare. Finally, although DoD has identified emerging methods of warfare that appear likely to be increasingly important in the future - particularly missiles and information warfare - it is difficult to assess confidently how these developments will affect the overall military competition.