This star destroyer is the Zyyan flagship.
About ten years since the formation of the galactic empire, the iron patriot was locked in mortal combat with rebel fighters. It was nearly destroyed when a wormhole opened in time and space and ripped the ship from that universe and dropped it into ours. Suddenly, 100's of E.O.S. ships appeared and attacked the ship hoping to salvage parts! But then(as if to speed the story along lol!) a group of C.O.P. ships from the nearby system of Zyyanbar appeared and fended off the enemy. The crew of the iron patriot, seeing there was no way back, pledged a life debt to the people of Zyyanbar aand to their president Khal. Khal (to give him his full title, father Khal of the Zyyans)was so honoured by this he made the iron patriot his flagship and command base.