This volume investigates the nature of threats facing, or perceived as facing, some of the key players involved in Asian maritime politics. The articles in this collection present case studies on Malaysia, Singapore, the Philippines, Thailand, Japan, China, and Southeast Asia as a whole and focus on domestic definitions of threats and conceptualisations of security. These studies map the differing understandings of danger in this region and explore how contending narratives of threats and security affect the national maritime security policy deliberations within the countries of this region. Those interested in maritime security and management in Asia will find this collection an invaluable addition to the literature on this topic.