The Intrepid class was a United Earth starship class, a light cruiser class in service to Earth Starfleet in the 22nd century. The Intrepid class saw service in the Earth-Romulan War. Following the formation of the United Federation of Planets in 2161, the Intrepid-class light cruiser remained in production as Federation Starfleet class, of the UESPA branch. (ENT episode & novelization: The Expanse, ST reference: The Official Starships Collection #44, ST reference: Federation: The First 150 Years, ENT - Rise of the Federation novels: A Choice of Futures, Live by the Code)