Drug trafficking by sea is not only a pressing criminal challenge but also a profound test of international law. This book dives into the conventions, doctrines, and landmark cases that shape how the world responds - from UNCLOS and the Vienna Convention to real disputes such as Arctic Sunrise and Enrica Lexie. Written for scholars, practitioners, policymakers and anyone concerned with maritime security, the book sheds light on the hidden battleground of the oceans, where law, politics and crime intersect.