What is the difference between an American base and an American post in 'Death in a Strange Country' by Donna Leon?

In "Death in a Strange Country" by Donna Leon, an American base typically refers to a large military installation that supports various operations and houses numerous personnel and resources, while an American post is generally a smaller, more specific location where military duties are performed. Bases often serve as logistical hubs, whereas posts may focus on particular missions or functions. This distinction highlights the varying scales and roles within the American military presence in Italy, reflecting the broader themes of cultural and operational differences in the narrative.