A brief conflict transpired on Geonosis, specifically at the Korakanni Mound, during the Galactic Empire's rule. This happened when some saboteurs were actively working to undermine the Empire's building of the Death Star. After Darth Vader learned that they had dispatched an ootheca to Galen Erso, hoping Erso would assist them, he led a unit of death troopers to the Korakanni Mound. There, they encountered the saboteurs, who were being commanded by a Geonosian queen, a rebellious one at that, who was reproducing even though the Geonosians were supposed to be a subservient species and were not allowed to breed without permission. Vader and his troopers killed the entire group as punishment for their betrayal of the Empire on the planet.