USS Defiant
The USS Defiant (NX-74205) is a fictional starship in the television series Star Trek: Deep Space Nine (DS9) and the feature film Star Trek: First Contact. The lead ship of her class and one of the Federation's first purpose-built warships, the Defiant first appears in the DS9 episode "The Search, Part I", after which it plays a significant role throughout the series in the ensuing Dominion War. While the original Defiant is destroyed in the show's seventh season, Starfleet sends a replacement ship of the same class, the USS Sao Paulo, which receives special dispensation from the Chief of Starfleet Operations to be renamed as the Defiant.
In the episode "Defiant", the character Gul Dukat describes the ship as "one of the most heavily armed warships in the Quadrant," while in the film Star Trek: First Contact, William Riker describes her as a "tough little ship."