Probably the Spanish-Indian interactions were quite like the interactions of the Romans with the Germanic tribes across the Rhine. In both cases the occupying f

Probably the Spanish-Indian interactions were quite like the interactions of the Romans with the Germanic tribes across the Rhine. In both cases the occupying force didn't press further, due to unfavourable geography, but the tribesmen were well aware that the occupiers weren't going to go away, so arrangements had to be made. It's no wonder that the Native Americans of the Southwest adopted the horse, seeing how useful it is, and then it spread quickly throughout the continent.