S. [fact]
When it comes to foreign bases, terminology often reflects political, legal, and public relations calculations more than analytic accuracy: using the terms military facility or forward operating location, for example, helps minimize perceptions of a base’s size and significance and the idea that an occupying military has usurped another nation’s sovereignty. Ensuring that base ownership officially remains with the “host” country and that the United States is officially a “guest” is likewise one way to try to reduce local opposition and political furor. In reality, the degree to which a host exercises effective sovereign control over its territory varies widely and generally reflects broader power relations between the United States and a host (another term that can be something of a misnomer depending on the degree of control a country actually has over its U.S. guests).
David Vine, Base Nation_ How U.S. Milit…, loc. 1091