In the early 2360s decade, it was commanded by Captain George Walter and had a crew of around seven hundred. In the year 2362, the Assurance was on patrol near Tzenkethi space with the USS Okinawa. When the Okinawa detected valuable bilitrium deposits on several planets in the Entelior star system, the Assurance joined with the other starship to stop the Tzenkethi from seizing the deposits. During a battle with the Tzenkethi near Entelior IV, the Assurance was rammed by a Tzenkethi marauder and was severely damaged, causing it to become caught in the gravity of the planet. In a plan devised by Benjamin Sisko, three shuttlecraft from the Okinawa, the Chatan, the Nago and the Naha, were connected to the Assurance by the tractor beams that was emitted by the starship in an attempt to pull the