In 2374, The Ammut'alar was under the command of the Vorta Gelnon. It attacked and damaged the USS Defiant, which was engaged in a scientific study of a subspace compression. Gelnon's soldiers boarded the ship and took the crew prisoner. Gelnon left Kudak'Etan in charge to bring the Defiant to a Dominion base, while the Ammut'alar continued on to attack the dilithium mines of Coridan III. (DS9 episode: "One Little Ship"; CCG set: Tacking Into The Wind)