USS Lakota
From FEInfobase
An uprated Excelsior Class vessel originally used to attempt to stop USS Defiant reaching Earth as part of Admiral Leyton's attempted coup d'état, Lakota served to coordinate and deploy Starfleet Security forces on Earth during the period of martial law and received a refit that included upgraded phasers and a supply of quantum torpedoes. (DS9: "Homefront")
The ship was declared missing in action on December 10th 2390 after being sent to investigate an area of sevier subspace disturbance several hundred lights from the Sol system.