ISS Reliant

In the mirror universe, the ISS Reliant was a starship in service to the Imperial Starfleet in the 23rd century. The Reliant was under the command of Captain Blaine (mirror).

In 2285, the Reliant was a part of the Imperial Starfleet invasion fleet in anticipation of the invasion of the Federation. The Reliant surrounded the USS Excelsior, when Admiral James T. Kirk's masquerade was discovered. 

The Reliant retreated with the rest of the fleet, when the HMS Bounty fought alongside the Excelsior against the rest of the fleet. 

The Reliant went back to Earth (mirror), where Captain Blaine was taken into custody for letting the Excelsior escape.