Book excerpt: How do two conventionally powerful, nuclear armed, but commercially oriented great powers, reliant on sea lanes and global maritime infrastructure, engage in a long-term strategic rivalry? When do such competitions lead to crisis instability and even war? This book presents a research agenda using a variety of methods to explore this unique competitive environment for China and the United States. The most likely great power friction points today are located at sea. Any shots fired between China and the United States will likely be between navies and air forces rather than armies. While much security studies understandably concentrates on land forces, basic concepts such as the importance of territory, the offense-defense balance, technological competition, economic warfare, and crisis stability do not comfortably apply to maritime competition. The chapters in this volume consider the use of naval power - including blockades, naval diplomacy, fleet engagements, and nuclear escalation - across the spectrum of global politics and international conflict. The volume encourages applying the many classic approaches of security studies to this high-stakes relationship while considering maritime conflict as distinct from other forms, such as land and nuclear, that have traditionally occupied the field. This work will be of great interest to students of strategic studies, international relations, maritime security, and Asian-American politics. The chapters in this book were originally published as a special issue of Security Studies.