Rakusin: “Circle Troopers. Arius must have realized we might need help.”
―Vice Admiral Talia Kasran and Admiral Elena Rakusin during the Battle of Hyrcania
Circle Troopers, also called Circletroopers, Circle (of Fifteen) Stormtroopers, Circle Commandos and, later, Council (of Fifteen) Stormtroopers, were an elite unit of Stormtroopers devised and created by the members of the Circle of Fifteen to supplement their inability to gain complete control of the Novatrooper or Storm commando Corps or to significantly expand the elite Sabertrooper Corps. In order to facilitate this, the newly-created Circle Trooper Corps was to be made up of both cloned and recruited soldiers, selected respectively from among the best clone templates created the Circle's own doctor Areana Ketar and the best soldiers of all types under the Circle's command. Unlike the Sabertrooper Corps, whose genetic sources from the personnel of the Clone Wars-era Nineteenth Army and Fifteenth Fleet, the Circle Trooper Corps' genetic sources were artificially created through advanced cloning science masterminded by doctor Ketar. These artificial sources were created in secret, through the modification, combination and/or enhancement of genetic data supplied by the Circle's own members and their best officers and soldiers. However, once the initial process of selecting sources was completed, no further genetic samples were required, as the artificial nature of the DNA used to create the Circle Trooper clones led to it being replicable.