What do these three words have in common conquistadormissionpresidio?

The Words "conquistador," "mission," and "presidio" are all related to the Spanish colonization of the Americas. A conquistador was a Spanish conqueror who explored and subdued indigenous populations, while a mission refers to a religious settlement established to convert Native Americans to Christianity. A presidio was a fortified military settlement that protected these missions and the surrounding areas during colonization. Together, they reflect the strategies and structures used by Spain to expand its influence in the New World.