The more civil solution maye be a evenly split planet between the reds and golds then, maybe with a de-militarized zone, forbiding both races to attack each other again, order backed by a permanent UCG fleet. But, as golds may prove to be more useful to UCG and mega-corps in general, this may lead them to eventually chip more territory from the reds, and having their own way to colonize other planets.
I'm curious to know what would happen if the Kui-Tan manage to get the planet as their colony. Will they be fair to both races, or favor the golds, gradually leading to the red to leave the planet or face extinction? Or they'll be abusive masters of both, forcings reds into serfdom and keeping the golds as a happy breeding cattle.?