Akatsuki (暁, Literally meaning: "Dawn" or "Daybreak")

Yahiko's Akatsuki
AkatsukiYahiko
Yahiko's Akatsuki.
Akatsuki was originally founded by Yahiko during the Third Shinobi World War, alongside his childhood friends Nagato and Konan. Orphans of the Second Shinobi World War, the three created Akatsuki as a way to bring peace to their home country of Amegakure, which too often got caught in the crossfire of the Five Great Shinobi Countries' many conflicts.[1] Their desire for an end to war attracted many fellow Ame ninja to their cause and, in time, word of their exploits began to travel beyond Amegakure's borders. Akatsuki's early fame was owed largely to Yahiko's leadership and his natural charisma, which kept the group united and motivated them to persevere despite the difficulties of their goal. Yahiko, however, viewed himself as merely a facilitator for Nagato, who would ultimately be the actual source of world peace because of his Rinnegan.

In time, Akatsuki's fame began attracting unwanted attention. They were first approached by Tobi, who claimed to be Madara Uchiha and offered to lend his assistance to Akatsuki, specifically Nagato. Yahiko was wary of Tobi and refused his offer, though Tobi claims Yahiko eventually agreed.[2] Ame's leader, Hanzō, also became aware of Akatsuki and perceived them as a threat to his rule, a belief encouraged by Danzō Shimura in the anime. Hanzō approached Akatsuki offering to help them broker peace between Konohagakure, Iwagakure, and Sunagakure. When Yahiko, Nagato, and Konan arrived to meet with him, however, they were ambushed by Hanzō's men and Danzō's Root, who took Konan hostage and forced Yahiko to commit suicide in order to save her. Enraged by Yahiko's death, Nagato summoned the Demonic Statue of the Outer Path and used it to slaughter their attackers, though Hanzō himself escaped.

In the anime, the other members of Akatsuki were tipped off to Hanzō's plan and attempted to provide backup to Yahiko and the others. Tobi intercepted them and killed them all.

Akatsuki WiKi[naruto.wikia.com]