The Sith Lord Naga Sadow had a decoy citadel built on the planet Khar Delba. The citadel was of the exact same design as that of Sadow's citadel on Khar Shian, which served as the Sith Lord's true base of operations.
It was attacked by forces loyal to the opposing claimant to the title Dark Lord of the Sith, Ludo Kressh, in a struggle for power over the Sith Empire.