The warrior caste comprised a division of Geonosians whose purpose was fighting wars. Individuals within this caste were called Geonosian warriors, alternatively referred to as Geonosian soldier drones, or just Geonosian soldiers. Among Geonosian drone types, soldiers were unique in that they were the only ones equipped with working wings. Their durable exoskeletons offered them a degree of invulnerability.
A specific kind of warrior was the Geonosian royal guard, acting as bodyguards for high-ranking individuals.