[defrost]

My understanding is that there isn't really any international body that steps in to rule on (say) treaties made by the USofA and various Indian nations.

History.com states (correctly or not) that "From 1778 to 1871, the United States signed some 368 treaties with various Indigenous people across the North American continent."

https://www.history.com/news/native-american-broken-treaties

Given the article that sourced this thread is about uranium mining in Utah, it might be of interest to recap how that has been handled in the past eighty years:

https://en.wikipedia.org/wiki/Uranium_mining_and_the_Navajo_...

The dot point summary would be "not great" (understatement), although the Navajo Nation did get saddled with 521 abandoned uranium mine areas most of which require a great deal of clean up and for which (IIRC) they have yet to receive any paper towels.