6/ Such claims are generally arbitrated via the πΊπ³ United Nations Convention on the Law of the Sea (UNCLOS), which defines "Internal Waters", "Territorial Sea", "Contiguous zones" and "Exclusive economic zone".
Today 167 countries and the EU πͺπΊ are parties to the convention.
But many countries want specific exceptions that benefit them.
https://en.wikipedia.org/wiki/United_Nations_Convention_on_the_Law_of_the_Sea