Defiant NCC-74205 (Mirror)

Defiant class (DS9 537)

The Starship Defiant, a close copy of the Federation starship of the same name from the Prime Universe, was constructed by the Terran Resistance in the Mirror Universe for use in their struggle against the Klingon-Cardassian Alliance, using technical information on the Defiant class downloaded by Miles "Smiley" O'Brien during his visit to the Prime universe's Deep Space 9 in 2371. "Smiley" was able to download the schematics from Deep Space 9's computers and brought them back to the Mirror Universe, where construction began at Terok Nor, which had come under rebel control. While construction proceeded well with materials stolen from the Alliance, the Defiant's powerful warp core nearly caused the ship to shake itself apart during test flights. With an Alliance fleet on its way to retake the station in 2372, O'Brien enlisted the help of Professor Jennifer Sisko to bring Captain Benjamin Sisko into the Mirror Universe, so that he could solve the problems on the Defiant. Sisko was able to iron out the problems and even commanded the Defiant in the Battle of Terok Nor against Regent Worf's fleet, helping to turn the tide in the war against the Alliance.

In 2374, the Defiant pursued Ezri Tigan and Brunt and repelled an attack by the Alliance. A few months later, Rebel Generals Zek and Julian Bashir gained the resources to build twenty-four more Defiant class warships at their new shipyard at Empok Nor. Twelve of these were made, including the Capital Gain, Jadzia and Terra Victor. However, eleven were lost in the explosion that destroyed Empok Nor, and the Capital Gain was disabled. The remaining warships were built some time later by O'Brien as part of his plan for a quadrant-wide revolution against the Alliance.

Ships Named Defiant

Prime Timeline

U.S.S. Defiant NCC-1764 (Constitution class)  •  U.S.S. Defiant NX-74205 (Defiant class)  •  U.S.S. Defiant NCC-75633 (Defiant class)

Columbia Timeline

U.S.S. Defiant NCC-1764 (Constitution class)  •  U.S.S. Defiant NX-74205 (Defiant class)  •  U.S.S. Defiant NCC-75633 (Defiant class)

FASA Timeline

U.S.S. Defiant NCC-1764 (Constitution class)  •  U.S.S. Defiant II NCC-1764 (Enterprise class)

Kelvin Timeline

U.S.S. Defiant NCC-1764 (Unknown class)  •  U.S.S. Defiant NX-74205 (Defiant class)

STO Timeline

U.S.S. Defiant NCC-1764 (Constitution class) U.S.S. Defiant NX-74205 (Defiant class)  •  U.S.S. Defiant NX-74205 (II) (Defiant class)

Mirror Universe

I.S.S. Defiant NCC-1764 (Constitution class)  •  Defiant (Defiant class)

Myriad Universes

Defiant (NX class)  • I.K.V. Defiant (E-4 class)  •  U.S.S. Defiance NCC-1717 (Constitution class)

Defiant class vessels

U.S.S. Ajax | U.S.S. Alaska | U.S.S. Albatross | U.S.S. Aldebaran | U.S.S. Ark Royal | U.S.S. Armstrong | U.S.S. Avenger | U.S.S. Baracus | U.S.S. Barracuda | U.S.S. Baton Rouge | U.S.S. Bennington | U.S.S. Boxer | U.S.S. Champion | U.S.S. Cheyenne | U.S.S. Cobra | U.S.S. Concord | U.S.S. Condor | U.S.S. Cormir | U.S.S. Corvus | U.S.S. Crockett | U.S.S. Dauntless | U.S.S. Defiant NX-74205 | U.S.S. Defiant NCC-75633 (formerly Sao Paulo) | U.S.S. Eagle | U.S.S. Eclipse | U.S.S. Falkirk | U.S.S. Fargo | U.S.S. Formidable | U.S.S. Franklin | U.S.S. Gallant NCC-74206 | U.S.S. Galahad | U.S.S. Gauntlet | U.S.S. Gawain | U.S.S. Grant | U.S.S. Halberd | U.S.S. Havoc | U.S.S. Helena | U.S.S. Horizon NCC-75668 | U.S.S. Hornet | U.S.S. Hurricane | U.S.S. Illustrious | U.S.S. Incessant NCC-75636 | U.S.S. Iwo Jima | U.S.S. Javelin | U.S.S. Kant | U.S.S. Kingfisher | U.S.S. Law | U.S.S. Lee | U.S.S. Alexey Leonov | U.S.S. Leyte | U.S.S. Logan | U.S.S. Loki | U.S.S. Man-o-War | U.S.S. Matador | U.S.S. Maya | U.S.S. Medvedev | U.S.S. Merrimack | U.S.S. Michigan | U.S.S. Mongoose | U.S.S. Monitor | U.S.S. Monsoon | U.S.S. Morgana | U.S.S. Moscow | U.S.S. Myrmidon | U.S.S. Narcissus | U.S.S. Neptune | U.S.S. Nomad | U.S.S. Pendragon | U.S.S. Pleiades | U.S.S. Potemkin | U.S.S. Python | U.S.S. Quillon | U.S.S. Ramses | U.S.S. Ranger | U.S.S. Raven | U.S.S. Redoubtable NCC-75634 | U.S.S. Relentless | U.S.S. Renegade | U.S.S. Resolute | U.S.S. Revere | U.S.S. Rockford | U.S.S. Rome | U.S.S. Saladin NCC-74350 | U.S.S. Sao Paolo-A | U.S.S. Savannah | U.S.S. Scorpion | U.S.S. Sioux | U.S.S. Sirocco | U.S.S. Snake Eyes | U.S.S. Spitfire | U.S.S. Stalwart NCC-75635 | U.S.S. Stromming | U.S.S. Tenacious | U.S.S. Thor | U.S.S. Ticonderoga | U.S.S. Titan | U.S.S. Treplev | U.S.S. Triumph | U.S.S. Triton | U.S.S. Tsunami | U.S.S. Turin | U.S.S. Valiant NCC-74210 | U.S.S. Valiant NCC-75418 | U.S.S. Valorous | U.S.S. Vanya | U.S.S. Victoria | U.S.S. Victorious | U.S.S. Vigilant | U.S.S. Voltaire | U.S.S. Warspite | U.S.S. Wasp | U.S.S. Wolverine | U.S.S. Zeppelin

STO Timeline

U.S.S. Belfast | U.S.S. Defiant NCC-75633 | U.S.S. Defiant NCC-75633-C | U.S.S. Sao Paolo-A | U.S.S. Poseidon NCC-8472-U

Kelvin Timeline

U.S.S. Defiant NX-74205

Mirror Universe

Capital Gain | Defiant | Jadzia | Terra Victor