The Confederacy of Independent Systems initiated an invasion known as the conquest of Kiros during the Clone Wars. This event transpired in 20 BBY. The invasion targeted the planet Kiros, specifically the peaceful Artisan colony inhabited by Togrutas. Under the command of Zygerrian Darts D'Nar, the Confederacy's B1-series battle droid forces gathered all the Togruta people. Subsequently, these Togrutas were transported to the Zygerrian empire by Zygerrian enslavers. This conquest was a consequence of the Separatists' alliance with the rising Zygerrian Slave Empire, a partnership that Sith Lord Darth Sidious aimed to utilize in order to rebuild the empire in anticipation of his future Galactic Empire. Recognizing the Separatist invasion, the Republic Military deployed the 212th Attack Battalion and 501st Legion to investigate the absence of communication from Kiros.
The StarWars.com Encyclopedia entry on Darts D'Nar first mentioned the conquest of Kiros within the episode "Kidnapped." However, both this initial mention and its subsequent appearance in the Databank incorrectly spelled Kiros as "Kiro."