Are there any stories with a powerful African or Native American or Aboriginal Australian empire?

For Native Americans, I'd greatly recommend the Eagles Trilogy by Alan Smale. I've read the first two books in the series and I'm currently on book three.
I haven’t read it myself yet but there’s this young adult novel called Blonde Roots it’s about an African empire colonizing the world and taking white slaves from Europe.
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For native, of south american variety, the guns ot tashawu of the late robert perkins is always a good read