The Kelvan War was a conflict between the Kelvans and the combined forces of the United Federation of Planets, the Klingon Empire and the Romulan Star Empire in 2285.

While most of the Gorn species was killed during the invasion, the Kelvan forces were defeated by the combined assets of the three interstellar nation-states. (Orion Press: In Harm's Way)

The Reliant class USS Jean Valjean (NCC-24601) Was Destroyed during this Conflict.