Yeah, this is something NO ONE wants to discuss in polite company, but back then indians really were ISIS tier savages when it came to warfare. They had practiced for centuries war of complete annihilation. Rival tribes would be completely slaughtered, with the only ones spared being the very young who would be adopted into the conquering tribe and raised as one of them.

This is why just unleashing and directing them attack European settlements was considered unjust evil warfare.

edit: If anyone is looking for a good book, check out Empire of the Summer Moon. All about the Comanches and their empire. Really great insight into them and how they functioned as a political nation and destroys the disney-avatar noble savage myth.

Yeah, this is something NO ONE wants to discuss in polite company, but back then indians really were ISIS tier savages when it came to warfare. They had practiced for centuries war of complete annihilation. Rival tribes would be completely slaughtered, with the only ones spared being the very young who would be adopted into the conquering tribe and raised as one of them.

This is why just unleashing and directing them attack European settlements was considered unjust evil warfare.