The term 'Garrison, Spanish-Style' refers to a type of fortification known as a PRESIDIO. A PRESIDIO is a fortified military settlement that was used by the Spanish Empire to protect their colonies in the Americas. The PRESIDIO was typically built with thick walls and towers, and was designed to withstand attack from both land and sea. The term 'Garrison, Spanish-Style' is derived from the fact that these forts were often garrisoned with Spanish troops.