This sensible, concise volume on the strategic centrality of Korea discusses the changes the peninsula will face in the future and the implications for the United States. The authors' general premise is that Korea remains critically important for northeast Asia's security, as has been the case since the Korean War. American bases in South Korea and Japan and American contributions to the defense of Taiwan play a key role. By acting as the balancer in northeast Asia, the United States has tempered lingering security dilemmas between Asian states and kept the region stable. In light of this success story, the authors argue for a continuation of U.S. troop presence in Korea to ensure stability as well as protect vital U.S. interests. This is a book that deserves to be widely read.