The K'mpec was was active in the year 2376, just after the end of the Dominion War. (GKN novel: Enemy Territory) The K'mpec was initially established in the Klingon Glossary of Diplomatic Implausibility, though not in the text of the novel. It had apparently just entered service by 2376, as in 2374 there was an IKS K'mpec of the Negh'Var-class active.