As strike cruisers, Biroks lacked the firepower and endurance of full battle cruisers, but in packs or supporting heavier ships they could be quite effective.
Birok class vessels took part in a number of skirmishes against Cardassian ships during the Betreka Nebula Incident, and continued service through the Dominion War and its aftermath. By the 2370s, however, the design was dated and the Biroks were being replaced with the more modern Karas-class strike cruiser. (ST - The Lost Era novel: The Art of the Impossible; GKN novel: Honor Bound)
- IKS Ch'marq, under Captain Grakal in 2376
- IKS Dogal, destroyed 2328
- IKS Kazin, under Captain G'Zar, destroyed 2328