Between the years 19 BBY and 3 ABY, Savax, the War-Master commanding the Southern Wastes region of Uba IV, spearheaded an offensive with a group of self-proclaimed True Ubese targeting the yrak pootzck Ubese residing on Ubertica.
This confrontation, while not an officially declared war, stemmed from a deeply rooted and longstanding blood feud between the two Ubese factions, tracing back over a millennium to the bombardment of the Uba system during the era of the New Sith Wars. Following that devastating event, the majority of Ubese survivors were left to fend for themselves as nomads in the harsh wastelands of Uba IV. However, a smaller group was rescued and given the opportunity to establish a new existence on the comparatively hospitable planet of Ubertica. As the Ubese from Uba IV began venturing beyond their home world, they discovered that their long-separated relatives had gained acceptance within galactic society. Savax, along with other like-minded Ubese, firmly believed that the "True" Ubese could only claim their rightful position in the galaxy through the annihilation of the "yrak pootzck" Ubese.
The forces under Savax's command comprised a union of various "True" Ubese clans, including his own Clan-Vorsazg. His naval force consisted of five capital ships of an unspecified class, which were later rumored to have been provided by the Hutts. Upon arriving in orbit around Ubertica, Savax's fleet initiated a bombardment campaign, resulting in the destruction of numerous urban centers on the planet. Savax's strategy involved obliterating as many settlements as possible from orbit, followed by the deployment of his ground forces to locate and eliminate any remaining survivors.
Fortunately for the inhabitants of Ubertica, as well as other planets within the sector, the Galactic Empire swiftly became aware of Savax's aggression. Consequently, an Imperial Sector Fleet was promptly dispatched to Ubertica. The Imperials retaliated against Savax's raiding party, resulting in Savax's death and the complete destruction of all five of his vessels.
Amidst the debris of Savax's obliterated fleet, a datafile was recovered, outlining the justifications behind his acts of genocide.