The Uul'ba-Rai are a race of sentient geovores that inhabited an area in the Unknown Regions. In about 7000 BBY, a fanatical theocracy began to rule through its priest caste, who took slaves and conquered at will. In about 12 ABY, a similar group came to power, and in 13 ABY, they attacked several Unknown Regions governments. The Black Star Confederacy, the Jade Worlds, the Isen Star Empire and the United Systems Alliance, now the Republic of United Systems, were among them. Though rebuffed by Isen and the BSC, they wreaked havoc on the JW and RUS before RUS Operation Firestorm crippled their navy and their superweapon.