By which I mean, the planet. Dac, to be politically correct, but I am old school and will say Mon Calamari. Wookieepedia (and various EU sources I've read over the years) suggest that the planet basically rose up in open rebellion against the Empire well before the Battle of Endor, and succeeded in ejecting the Imperials (Wookieepedia says they were kicked out of the entire sector). Here I think we have a problem. As I recall, Dark Empire and the JAT stated that Mon Calamari was pretty high up on the Death Star List, but you'd think the empire would take measures in the interim. How can an open Rebellion be sustained in 0-4 ABY? Remember the huge Imperial Starfleet? The Empire wants to force open confrontation so it can bring its numerical advantage to bear. The Rebels depend on stealth and mobility to wage a guerilla campaign. I will certainly grant that the Mon Cal and Quarren had a huge advantage under the waves against an occupation, and even that a BDZ against a water world would be impractical, but you'd think the legendary shipyards and any space traffic around the system would be targeted with extreme prejudice. And if the Mon Cal managed to control their space borders as well as the situation "on the ground," we face another question: Why mess around with places like Hoth? Why not just locate the main Rebel base on what would have to be a heavily secure planet? I certainly have my theories on how to explain a situation like this, and I'll likely share them later on, but I was really wondering if any EU sources had tried to explain around the problem or given much more in the way of detail about this "open rebellion" and the Empire's response. Is there even a definitive place on the timeline where the got Empire kicked out? Finally, and somewhat tangentially, are there any other worlds pre-Endor that had sustained, open rebellions?