Somebody mentioned Defiant cloaking. Is there any explanation for how Starfleet still has the right to use a Romulan cloaking device when relations with the Empire have been iffy for several years?
I think that, as per their original agreement with the Romulans, they only use the cloak while they're in the Gamma Quadrant. Though, granted, it's questionable why they're allowed to keep it at all.
I'm fairly certain the Defiant
cloaked a few times while in the Alpha Quadrant in Raise the Dawn
. Of course, had the Praetor complained, President Bacco could have just said, "Yeah, well, your ships attacked us, so fuck off."
Does the federation even still have to abide by the treaty of algernon? Is this still offically the same entity as the Romulan Star Empire of the pre-shinzon/donatra/etc days?
1. So far as we know.
2. Yes, so far as we know. There's been no indication that the state was dissolved. Its government may have changed, but it's still the same sovereign state, just like how the coup in 1972 didn't mean it wasn't still the Republic of Chile.