"Imperial Scum!"
-Gizor, during the Battle of Mustafar
Gizor Delso was an former Separatist engineer and Geonosian warrior who fought against the Galactic Empire using his own personal Droid Army that he created using an abandoned Droid Foundry on the lava planet Mustafar. His rebellion gained some support from other Geonosians that survived the Sterilization of Geonosis in 14 BBY. However, Gizor's rebellion would be put to an end when the Galactic Empire sent Imperial Stormtroopers from the 501st Legion to Mustafar and killed Delso, stole his blueprints for a new battle droid model, and blew up his droid factory.