A group of Imperial clone shock troopers provided security for the Galactic Senate Building, under the leadership of Clone Commander Thire, who held the position of commanding officer. After the Proclamation of the New Order, which transitioned the Galactic Republic into the Galactic Empire, Commander Thire and his troopers received orders to locate Jedi Grand Master Yoda soon after his battle—a duel—with the Galactic Emperor Darth Sidious. Subsequently, Thire was instructed to escort the Emperor, along with a squad of his soldiers, to Mustafar in order to retrieve the critically wounded Darth Vader.