Section 31 should have brought back the USS Defiant as San's starship from the Mirror Universe. The original Constitution ...

Defensively, the Defiant class ships had shields as well as ablative armor. But the USS Defiant had one other trick up its sleeve that the rest of its class did not. As the first and only one of ...

so Starfleet sent another Defiant-class ship, the USS Sao Paulo, to replace it. Eventually, this ship was renamed the Defiant in honour of their lost vessel. Both ships showed a very different ...