As the Clone Wars escalated, Wat Tambor took an interest in the captive ARC trooper CT-1409, who had been captured during a battle in the Citadel but was presumed dead by the Republic. Tambor kept an unconscious Echo in a stasis chamber and managed to extract information from Echo's mind to use as an algorithm consisting of strategies devised by Echo and the Clone Captain CT-7567. While officially professing the Techno Union's neutrality, Tambor had sold the algorithm to the Separatist Admiral Trench, who used it to great effect during the Battle of Anaxes to invade the Republic world of Anaxes. Tambor's dealings with the Separatists were exposed by a Republic infiltration team consisting of Rex, Clone Force 99, and the Jedi Knight Anakin Skywalker.