To spread the religon to native Americans
They are usually formed around rivers
They built missions to protect the friars from unfriendly Indians.
Presidios were built to protect the Spanish settlements from attack.
Missions
they did nothing
To provide protection to the missions.
Pueblo, presidios, and missions
pueblos,missions and presidios
the mission and pueblo communities produced food for the presidios in exchange for protection.
French
The purpose of the missions and presidios was to establish Spanish dominance in the Americas by converting indigenous peoples to Christianity (missions) and protecting these settlements with military forts (presidios). Additionally, they aimed to facilitate trade, expand territory, and secure valuable resources for the Spanish empire.
Because the presidios contained military and the military could just rush over to help the missinarys in any case of troule.