USS Atlirith

USS Atlirith (AGC-7-45) was a Federation starship, a battleship in Starfleet service in the 2160s decade. Atlirith was operated by the Andorian Imperial Guard, the defensive branch of Starfleet. 

History
On October 11, 2165, Atlirith, USS Docana and USS Essex (NCC-173) defended the Starfleet outpost on Ardan IV from a strike by the Klingon Empire. While Essex evacuated the outpost, Atlirith and Docana engaged a pair of battlecruisers and the  bird-of-prey. Atlirith and Docana soared ahead, forcing the Klingons to scatter, and fire was exchanged. During the subsequent Battle of Ardan IV, the port wing cannon took a serious hit, allowing Gantin to slip past and assault the evacuation shuttles. Soon after, Atlirith destroyed one of the battlecruisers. When Atlirith and Docana moved in to trap the remaining battlecruiser, the D5 and the Gantin accelerated towards Ardan IV, detonating the planet's dilithium reserve and causing a conflagration reminiscent of Coridan Prime. Ardan IV was rendered uninhabitable. 

Background
In the acknowledgments, author Christopher L. Bennett clarifies Atlirith was named as a precursor to the IUES from the alternate timeline of the.