I got a question (and I maybe wrong on the law/ban for whale hunting by all countries).

Isn't there a ban on hunting whales that makes it illegal for any "Country" to hunt whales? So if Norway, or Japan can't hunt whales, and are not they sovereign nations, what would make it legal for the Makah's? If they want to be considered a sovereign nation, should they not follow the same laws, regulations that the rest of the world has agreed to follow.