Construction of the Defiance as a Bonhomme Richard-subclass vessel was authorized by the Starfleet appropriation of stardate 3220. (TOS reference: Star Fleet Technical Manual) The Defiance was refit to the Enterprise-subclass specifications, specifically outfitted as a rear-fire heavy cruiser (CAR) by the 2280s decade. (ST video game: Starfleet Command) No history or fate is established for this vessel in Starfleet Command as its name was randomly assigned to a cruiser vessel by the game software.