A harsh rocky world less than a parsec away from Tatooine, Geonosis is a ringed planet beyond the borders of the Galactic Republic. Its uninviting surface is made up of harsh, rocky desert, and the creatures that evolved on Geonosis are well equipped to survive in the brutal environment. The most advanced lifeform are the Geonosians, sentient insectoids that inhabit towering spire-hives. The Geonosians maintain large factories for the production of droids and weapons for the Separatist cause in the Clone Wars. After the Clone Wars, the Empire chose Geonosis as the construction site of the first Death Star, restricting travel to the system and sterilizing the planet’s surface.
Poggle the Lesser was the leader of the insect-like Geonosians throughout the era of the Clone Wars. Due to his control of the Geonosian battle droid factories, he was a powerful figure within the Confederacy of Independent Systems and commanded the droid armies that fought against the Republic in two battles for control of Geonosis. At the end of the war, Poggle lost his life to Darth Vader.
Klik-Klak was the lone Geonosian survivor following the Empire's eradication of his people. He hid in the Geonosis caves, fearful of outsiders, and used battle droids left over from the Clone Wars as a means of protection. But he wasn't just protecting himself; Klik-Klak was the keeper of a queen egg, which could be the key to rebuilding his kind.
At the time of their introduction, the Republic clone troopers represented the future of galactic warfare. Far superior to battle droids, the clone troopers formed the backbone of the Republic's new military that waged war against the forces of the Confederacy of Independent Systems. So symbolic were they of the times, the galaxy-wide conflict that saw their debut took its name from their ranks: the Clone Wars.