- For other uses, see Dauntless.
In September 2155, Dauntless was part of a six-ship task-force led by the imperial flagship USS Defiant, to recover Empress of the Terran Empire Hoshi Sato from an anti-Terran rebel stronghold. The task force found Sato on Aldus Prime. The Vulcan, Orion and Tellarite rebel forces outnumbered the task force nearly three to one, and a battle ensued.
One minute into the battle, Dauntless reported the loss of ISS Bismarck. Later in the battle, Dauntless and ISS Interceptor lured rebels away from Defiant by circling the north pole of Aldus Prime. By the end of the battle, Dauntless had lost warp power but survived. (ENT - Mirror Universe novel: Age of the Empress)