A fort usually built to protect a mission is called a

• A. Presidio
• B. Garrison
• C. Fort
• D. Outpost

Answer: (A)

A presidio is a fortified military post established by Spanish colonists to guard missions and the surrounding settlement. This term specifically combines defense with the mission context, which is why it best fits the clue about a fort built to protect a mission. A fort is a general term for any defensive stronghold, not necessarily tied to a mission. A garrison refers to the troops or the act of stationing them there, not the place itself. An outpost is a small, distant military station and doesn’t inherently imply protection of a mission.