HIMS Vanguard was an Imperial-class Star Destroyer commanded by Commander Ritton in the years following the Battle of Hoth. The Star Destroyer is best known for being the flagship of then-Vice Admiral Thrawn during Grand Admiral Demetrius Zaarin's attempted coup approximately one year before the Battle of Endor. After Zaarin managed to take Emperor Palpatine prisoner from aboard the Star Destroyer Majestic, Zaarin had Palpatine transferred to an Escort Shuttle which was tasked with rendezvousing with Zaarin's flagship, Glory. Hoping to stop the exchange and rescue the Emperor, Lord Darth Vader, along with ace pilot Maarek Steele, deployed from aboard Vanguard in a TIE Bomber and TIE Shuttle assault on the Glory. Taken by surprise, Zaarin was forced to withdraw, and Vanguard successfully re