The Defiant-class frigate was a class of frigate constructed from 22 BBY and 21 BBY by the Confederacy of Independent Systems, during the Clone Wars. They were some of the only ship built by the Camildrona Shipyard Corporation for the Confederacy, built during the Separatist occupation of the planet. The ships were finished in early 21 BBY, just before the Battle of Camildrona. Most of the ships survived that battle, and went on to serve numerous engagements against the Galactic Republic.