The cruiser originally belonged to a Klingon sect that believed that the Klingon Empire had lost its way. Launched during the latter half of the 23rd century, its crew sought to follow the Sacred Scrolls that revealed that they must embark on a journey to a distant region of the galaxy to seek the kuvah'magh. For the next century the ship traveled the Delta Quadrant.
While traveling under cloak, on stardate 54500, Kohlar's battle cruiser encountered the Federation starship USS Voyager. Believing that the Klingon Empire was still at war with the Federation, Kohlar decloaked, fired on Voyager, and quickly recloaked. During the initial attack, the battle cruiser inflicted moderate damage to Voyager's port shields, causing them to drop fifty percent. Despite the initial tactical advantage, Voyager was able to detect the battle cruiser by performing a metaphasic scan, and promptly disabled the cruiser's cloaking device and forward disruptor emitters with their phasers.
Kohlar, who was attempting to buy time for repairs, replied to Voyager's hail. Voyager's Captain Kathryn Janeway revealed to Kohlar that there was a treaty in effect between the two powers, and she asked that the Klingons stand down. Unconvinced of Janeway's statement, Kohlar agreed to transport aboard Voyager to meet the ship's chief engineer, the pregnant half-Klingon B'Elanna Torres.
Upon returning to his ship Kohlar convinced his crew that he had found what they were seeking in the Delta Quadrant, the kuvah'magh: B'Elanna Torres' child. Kohlar declared it to be the Day of Separation, and despite some reluctance from his Council of Elders, ordered the ship to initiate its self-destruct sequence. Its crew, comprised of men, women and children, was beamed aboard Voyager and the ship was destroyed by a warp core breach. (VOY: "Prophecy")
|IKS Devisor • IKS Gr'oth • Kang's battle cruiser • IKS Klothos • Kohlar's battle cruiser • Kuri's battle cruiser • Unnamed|