USS Defiant (2370)

The USS Defiant (NX-74205) was a Federation Defiant-class escort ship in service in the late 24th century. The Defiant was a prototype for this new class of 'battleships' originally developed in response to the Borg threat. The Defiant was assigned to Deep Space 9 to increase the threat toward the Dominion. The USS Defiant served as a flagship in the Dominion War until it was destroyed by the Breen in 2375.

Original Development
Development on the Defiant began in response to the Borg threat around 2366.

The Federation's defeat in the Battle of Wolf 359, resulting in the destruction of 40 Starfleet vessels and around 11 000 personnel proved that Starfleet's defenses against the Borg were extremely inadequate. Because of this, Starfleet started designing a new type of starship that was intended for combat and hosted minimal science equipment and was not designed accommodate families.