The law that applies to maritime operations at sea is complex and comprises two distinct elements: treaty law (1982 United Nations Convention on the Law of the Sea), and the cases and incidents that occur at sea in both peacetime and during armed conflict which result in the creation of customary international law applicable to maritime operations at sea. Covering sovereignty and vessel status, jurisdiction and interdiction, freedom of navigation, maritime law enforcement and security, and...

The United Nations Convention on the Law of the Sea (LOSC) represents one of the most successful examples of multilateral treaty making in the modern era. The convention has 168 States parties, and most non-signatory States recognise nearly all of its key provisions as binding under customary international law, including the United States. Nevertheless, there remain significant differences in interpretation and implementation of the LOSC among States as well as calls, on occasion, for its ...