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
Technology in Star Wars (though technically not part of the "Star Wars" canon). The laser weapons in "Star Wars" use the same principle concepts of a laser being a light source. Light sources produce light in a series of waves. The waves spread in all directions, unless controlled. Controlling or containing the direction of light energy is also known as synchronization. This concentration of energy in one direction gives it strong and sometimes powerful intensity. Lasers have different uses for military purposes, many of which strongly differ from what is seen in "Star Wars", but still follow the same concepts of concentrating energy and/or