I've been playing civ5 since it came out, including gods and kings, and now brave new world. i'm in my first BNW game as Portugal, and Mongolia is on my continent and conquered 3 city states. I've taken 2 of the 3 back so far and I got no popup for whether to liberate, annex, puppet. I wanted to liberate them but I can't find a way to do it. Has anyone else seen this? Is this a bug or is there some new ui I am supposed to use to liberate city states?