The ANBU (暗部; meaning "Dark Side"), short for Ansatsu Senjutsu Tokushu Butai (暗殺戦術特殊部隊; meaning "Special Assassination and Tactical Squad"), take orders from the Kage. The ANBU usually work in teams formed to the needs of the mission. Shinobi in the ANBU are hand-picked by the Kage, chosen for their individual capabilities & special skills, Age, gender, & background. They wear masks to conceal their identity. An ANBU agent is to be known only by the Kage and village elders.