Geonosis

Geonosis was a desert planet home to the native Geonosians. It was the first capital of the Confederacy of Independent Systems (CIS) and was a major site for massive droid foundries.

The site became the location of the start of the conflict, the Clone Wars, when the Grand Army of the Republic invaded the planet to prevent the Droid Armies from escaping. There were many casualties on both sides during the battle, as hundreds of thousands of droids and clones clashed on the desert plains and in rocky canyons. The planet would be invaded a second time, several months into the war.