The Olzida Azzgaat-class heavy cruiser was a Bregaran licence-built version of the Dreadnaught-class heavy cruiser and was primarily used by the Imperial Navy of the Ingzan-Bregaran Empire, as well as by the rebel Allied Armies Against Ingzan-Bregaran Imperialism, the N'Akkiarlian Star Empire, the House of Dezendyan and the House of Vás, two rich industrial/transportation families who fought a feud against each other at the same time as the Rebellion against the Ingzan-Bregaran Empire and by the Blúd Sháká Pirates, who during the rebellion were privateers for the Empire.