In the mirror universe, Bolarus IX was the homeworld of the Bolian species and a subject world of the Terran Empire. Prior to the arrival of Imperial Starfleet, Bolarus and it inhabitants were almost always in a state of constant warfare. The early Bolian clans fought for territory, while centuries later, cities conquered one another or came together to form nation states. At the time of imperial conquest, in 2246, the Bolians were divided into three superpowers, the Bol'se, Bol'ki and Bol'ra nation-states.