The Reman Scimitar Warbird was built in secret at a hidden Reman base on Remus. A fearsome ship, the Scimitar was built around its Thalaron Cannon. The Scimitar was successful in cowing the Romulan Star Empire and allowing the rebel leader, Shinzon, to take control of the Romulan empire.
The ship was destroyed when its Thalaron Generator was destroyed.