The study of Maritime Security should not be limited to State/Military issues alone. It should be understood more broadly as including Non-State/Non-Military, Non-Traditional Maritime Securi-ty issues as well. This edited book explores NonTraditional Maritime Security issues such as Sri Lanka’s Marine Environment, Illegal Fishing in South Asia, and Illegal Seaborne Migration from South Asia to Australia within a Comprehensive Maritime Security approach. Several chapters in this edited volume emphasize the links between Non-Traditional Maritime Security and National Interests and Security. The research in this volume point towards a need to understand Maritime Security comprehensively and holistically.. Contents: Contributors • Introduction • Sri Lanka and the Sea: The Environment as a Geopolitical Tool • Maritime Border Protection in Palk Bay and Palk Strait • Fisheries, Livelihood and Security Issues in Palk Bay • Examining the Fisheries Issues at the Maritime Boundary between India–Pakistan and India–Bangladesh • Seaborne Illegal Migration from South Asia to Australia: A Sri Lankan Perspective • Illegal Migration from South Asia to Australia: An Analysis of Australia’s Response • Conclusion