Black Ops

The ANBU (暗部, Dark Side), short for Ansatsu Senjutsu Tokushu Butai (暗殺戦術特殊部隊, Special Assassination and Tactical Squad; English Version: ANBU Black Ops), take orders directly from the Kage, performing special high-level missions, such as assassinations and torture. The ANBU usually work in teams formed to the requirements of the mission, ensuring maximum success. The shinobi in the ANBU are hand-picked by the Kage; chosen for their individual capabilities and special skills. Age, gender, background, or previous rank bear no weight in this decision.

There are apparently no true ranks within the ANBU, as is the case with the regular forces. Team leadership and hierarchy seem to be based on merit and experience. The leaders of the teams are called squad leaders (分隊長, Buntaichō), a position held in high regards.

There are various groups within the ANBU, aimed at various different functions and tasks. Kirigakure, for instance, has the Hunter-nin, a group created solely for hunting down and disposing of missing-nin. Konohagakure has the ANBU Torture and Interrogation Force, who interrogate prisoners and work to gather intelligence. Though they were to officially disband, another ANBU group named Root would carry out extremely secretive missions and were not under the direct authority of previous Hokage.