This is correct. People treat native Americans as some sort of monolithic bloc when they were anything but. The tribes themselves had many warring feuds going back centuries and developed competing alliances with imperial forces when they arrived, some allying with the French, others with the British or Spanish.

And in almost every corner of the continent.

http://www.emersonkent.com/map_archive/native_american_tribe...

Maybe counties would be a better unit to consider.

I believe the answer would be

> Native Americans.

Whether that encompasses multiple tribes or not, doesn't change that.