The Tank Droid is a war vehicle from the fictional Star Wars constructed by the Corporate Alliance to combat the Army of the Republic. The standard version of the Corporate Alliance Tank Droid was the Persuader- Type Droid Enforcer. It was one of the many contributions of the Corporate Alliance to the droid armies of the Confederacy of Independent Systems. The Corporate Alliance used this deadly Droid Enforcer to punish local populations on Outer Rim worlds that opposed the Alliance or complained about unfair business. The tankdroid was a 6 metre tall automaton with a huge central wheel supported by 4 small outrigger wheels. It could also roll on its single traction drive thread. The tank droid was also equipped with 4 arm-mounted blaster cannons. The droid's front featured several sensors above its two photoreceptor eyes. During the Clone Wars, the tank droid was dispatched across the Star Wars galaxy to defend Confederacy bases. They could also be used to accompany vehicles such as the Homing spider droid and the Hailfire droid. During a battle the tank droid could also crush to death any unfortunate enemy soldier that got into its path with its huge central wheel. Of all the Confederacy war vehicles, the Tank Droid was feared most by civilians and soldiers alike because of their destructive power and relentless nature. They would crush even unarmed civilians without any mercy and would fire their weapons with wild abandon. To make it even worse, the Corporate Alliance began equipping them with voice modulators to make these automatons even more frightening towards the end of the Clone Wars. The Tank Droid participated during the Battle of Geonosis but never made it into the film. They also appeared in the Revenge of the Sith during the Battle of Kashyyyk where they crushed countless Clone troopers and Wookies.