Clone trooper film series and in the "Star Wars" expanded universe media, a number of specialized trooper units are seen, including elite special forces units such as the 'Advanced Reconnaissance Commandos' (ARC troopers), and Null ARCs, who usually work alone. All clone commandos and ARCs were trained by Mandalorian mercenaries; the elite Clone Troopers are known as Shadow Troopers. The style and color of a clone troopers armor often varies depending on their rank, specialization, unit, or environment, for example, the clone troopers on Kashyyyk wear camouflage green scout-style armour whereas the 501st legion wears standard white armor with blue accents. Another
Clone Wars (Star Wars) all of "Star Wars," was the Vietnam War and Watergate scandal era, when leaders embraced corruption for what they thought was the best course of action. In 2002, Lucas said: The clone forces shown at the "Attack of the Clones" conclusion comprised the largest digital army created for film at that point. Lucas proposed to concept artists that "Revenge of the Sith" would open with a montage of seven battles on seven planets. Lucas then radically re-organized the plot, which Michael Kaminski surmises in "The Secret History of Star Wars" stemmed from flaws with Anakin Skywalker's fall to the dark