In the mirror universe, the Battle of Terok Nor was a battle fought between the Terran Rebellion and the Klingon-Cardassian Alliance for control of Terok Nor in 2372. The battle was a major victory for the Terran Rebellion, the rebels managed to hold the captured Alliance station Terok Nor against a large Klingon-Cardassian Alliance fleet led by Regent Worf. The rebels were able to successfully defend the station from an Alliance attack with the aid of a new starship, the Defiant and the help of an alternate universe version of Benjamin Sisko. (DS9 episode: "Shattered Mirror")