Tribal conflicts called Bloodings occurred on the planet of Byss, situated in the Outer Rim Territories. Given the extreme rarity of water, the various Abyssin tribes engaged in lethal combat for control of oases; victory granted the winning tribe territorial claims. Bloodings could also serve as a means for Abyssin to resolve individual disputes. Their prevalence diminished with the arrival of the Arcona on Byss, who promoted cooperation among the tribes, leading to their eventual decline.