- For other uses, see Valiant.
- "...it was a good ship, with a good crew, that made a mistake."
- —Nog, 2374[src]
The USS Valiant (NCC-74210) was a Federation Defiant-class escort starship in Starfleet service in the 24th century. This ship was in active service around the Dominion War of the 2370s, and was one of a number of vessels bearing this name of numerous vessels from history, all named for the common meaning of the term "valiant". (DS9 video game: Dominion Wars)
The Valiant was assigned as a training ship for the elite cadet corps Red Squad. During the training cruise mission, the Dominion War broke out and the ship was trapped behind enemy lines. During the attempt to return to Federation territory, the Valiant was attacked by a Cardassian battle cruiser and all the regular officers, including Captain Ramirez, were killed or critically wounded, leaving the cadets in command. After collecting detailed intelligence concerning a previously unknown Jem'Hadar battleship, the crew attempted to destroy the vessel. The plan to attack a certain section of the Dominion ship failed to destroy the vessel, which launched its powerful weapons against the Valiant. Jake Sisko, Nog and Dorian Collins were able to escape the Valiant before it was destroyed. (DS9 episode: "Valiant")