In the mirror universe, the ISS Nobunaga was a Constitution Class starship modeled after the USS Defiant.Its construction was ordered by Empress Hoshi Sato I due to renewed rebellion activity.The vessel was equipped by Commander Tucker with a prefix code that would allow the Empress to take control of the ship through subspace. However,while the Nobunaga was stationed at Beta Nairobi, Tucker gave the code to a clone of Jonathan Archer,who had joined the rebellion against the Empress. Archer then used the Nobunaga in strikes against the Empire. (ENT short story: "Nobunaga")