While clearly the Feds have got some
territorial imperative on the station, I've often wondered whether DS9 is a fully Federation starbase, or whether it is technically 'owned' by Bajor? Or is it some kind of joint-ownership deal? Maybe Sisko and Kira share authority in that sense? Maybe Starfleet only exist there in an administrative capacity?
I seem to recall there was lots of talk in the first season (but in "Emissary" in particular) about Nerys' concerns that the provisional government could effectively be simply replacing the Cardies with the Federation, without taking the opportunity to grasp true independence now that it was within their sight. While still begrudgingly acknowledging that they kind of need
the Federation right now. My impression was this view softened as the years went on.