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human
[Star Wars] What happens to Cloud City/Bespin after the events of Empire Strikes Back?

I watching ESB for the 300th time last night and I got to wondering what happens to Cloud City after its mayor, Lando, just up and leaves to join the rebellion without so much as a goodbye?

What happened to Lobot and everyone? Lobot seemed like Lando's loyal right hand guy. Last time they saw each other he told him to take the captured troopers into custody and then he runs off with Leia on the Falcon.  

Did Vader leave that stormtrooper garrison there like he threatened? Did the Empire occupy the city for the rest of the war? 

Its never touched upon or mentioned ever again in the movies. If my towns mayor just bounced and left me and my citizens to occupation I'd probably be pissed.
gpt
Imperials take over the city, and continue to occupy Bespin until the months after the Battle of Endor. Lando eventually puts together some forces to retake the city, and the last Imperial holdouts surrender to him. (I think it was detailed in Aftermath 3)