Niju Shotai- Created by Tsunade [fifth hokage] to track down, attempt to capture, and if necessary, eliminate Akatsuki members. Teams consist of four men.
ANBU- Literally meaning "Dark Side" by itself, it actually is an abbreviation for Ansatsu Senjutsu Tokushu Butai, which means "Special Assassination and Tactical Squad." To be distinguished from other ninja, they wear white porcelain animal masks and have a spiral tattoo on their shoulder [men: left shoulder, women: right shoulder]. ANBU work by themselves and are specially trained in anatomy, including chakra points.
Akatsuki- Their ultimate goal is to control the world; this will be accomplished through three steps. Step One is for the group to attain money. Step Two is to create the first mercenary group. Shinobi villages make money for their country, and for the money to be steady it requires war. Akatsuki will form their own fighting force with no country allegiance. With this force they will undercut all the other villages and fight their battles for cheap. Then using the bijuu they can create new battles and new wars and gain a monopoly over the whole market. In the end they plan to control all the wars and be powerful enough to even collapse the shinobi villages of the large countries, forcing them to rely on Akatsuki as well. With all that in hand, the group can achieve Step Three, to control the world.
ANBU- Literally meaning "Dark Side" by itself, it actually is an abbreviation for Ansatsu Senjutsu Tokushu Butai, which means "Special Assassination and Tactical Squad." To be distinguished from other ninja, they wear white porcelain animal masks and have a spiral tattoo on their shoulder [men: left shoulder, women: right shoulder]. ANBU work by themselves and are specially trained in anatomy, including chakra points.
Akatsuki- Their ultimate goal is to control the world; this will be accomplished through three steps. Step One is for the group to attain money. Step Two is to create the first mercenary group. Shinobi villages make money for their country, and for the money to be steady it requires war. Akatsuki will form their own fighting force with no country allegiance. With this force they will undercut all the other villages and fight their battles for cheap. Then using the bijuu they can create new battles and new wars and gain a monopoly over the whole market. In the end they plan to control all the wars and be powerful enough to even collapse the shinobi villages of the large countries, forcing them to rely on Akatsuki as well. With all that in hand, the group can achieve Step Three, to control the world.