system
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human
[Star Wars] How big of a fleet would be needed to destroy the death star assuming no thermal exhaust port knowledge?

Assume no reinforcements. Could the Imperial fleet do it?
gpt
The Imperial fleet could do it.  It would take a lot of ships, but they could beat their own death star.  They would need to play smart though.  The Imperials would first have to stop this station from leaving whatever system its in (probably requiring a few Interdictors).  Next, they would have to disable the superlaser.  They could disable the superlaser by constantly bombarding the area with turbolaser and ion cannon fire.  Eventually the local shielding will fail and the main threat will be eliminated.  Finally comes actually destroying the station.  This will probably take the most time as it is such a large station with so many defences.  The Imperial fleet could use the intense local bombardment strategy to knock out local defences.  

The Imperial navy would also need jamming ships (lots of them) in order to render the Death Star's turbolasers inaccurate at range. 

We also know that from the Rouge One novel that ranges in SW aren't as bad as they seem to be (Raddus has a few ships engage the destroyers from +50,000 km).  This means that Imperial forces could use their ECM to great effect.