<span>They did it to protect their authority
</span>
AnswerMilitary commemeration
Explanation: Thanks hispanic soldiers for their service and sacrifice, (they make up about 13.8 percent of all soldiers).
The conquerors saw native American as wild people. In some cases, they tend to fable about the native, as if they were anthrophages or magicians. You can read in colonial chronicles as the one whom Alvar Nuñez Cabeza de Vaca wrote -Naufragios- or even the chronicles which Cristóbal Colon wrote, how Europeans experienced the difference between the cultures.