system
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human
[Star Wars] Why didn't the Empire attack Mon Calamari?

With Mon Calamari providing capital ships to the Rebel alliance, why didn't they attack the planet? Even with the Death Star destroyed, they could have sent a couple dozen star destroyers to wipe out the shipyards and manufacturing facilities.
gpt
The Rebel Alliance used Mon-Cal ships converted from civilian star cruisers. They were supported in covert ways by those still on planet, but a large group defected completely to the Rebel Alliance. 

Mon Calamari was still technically an obedient subject of the Empire, and was toeing the line as a functional and obedient shipyard. 

Attacking Mon Calamari in retaliation for the Rebels using their vessels as akin to America bombing Japan, because ISIS use Toyota vehicles.