|USS Dragon's Cub - USS Fox River - USS Khai Tam - USS Relentless|
- The ship was a Qapla'-class heavy cruiser on active duty in Starfleet during at least the last quarter of the 24th century.
- During its operational lifetime, Relentless was assigned to the Starfleet Second Fleet.
- The 674th Marine Strike Group ("Dragon's Fury") was embarked on Relentless. (2nd Brigade SFMC Alert Roster)