Naruto Shippuden

Before the era of ninja villages, Madara was the most gifted member of the Uchiha clan. Even by his clan's standards, Madara's chakra was unusually strong. He grew up in constant competition with his younger brother, Izuna Uchiha. In their efforts to surpass the other, each gained their own Mangekyō Sharingan. With the power of the Mangekyō the two brothers took control of the clan, with Madara acting as its leader. Under his leadership, the clan conquered all they came across. Because of the never-ending series of battles of the time, Madara eventually began to suffer from overuse of the Mangekyō Sharingan, leaving him blind. In order to regain his sight he took Izuna's eyes for himself, granting him an "eternal" Mangekyō Sharingan with which he led the Uchiha to prosperity. Madara insists Izuna consented to the act.

Over the years, the Uchiha had constantly fought with the equally powerful Senju clan. To bring an end to the constant fighting, the leader of the Senju, Hashirama Senju, approached the Uchiha with an offer of peace. Although Madara never wanted peace with the Senju, the rest of the Uchiha wished to end the fighting, and Madara had no choice but to accept. The Senju, the Uchiha, and all the clans they had conquered came together to form the village of Konohagakure. Against Madara's wishes, the villagers selected Hashirama as the village's First Hokage. Madara feared that Hashirama would oppress the Uchiha, and tried to rally support for challenging his leadership. Rather than help him, however, the Uchiha turned their backs on him, believing he only desired more power. Abandoned by his clan, Madara left the village, later returning in order to challenge Hashirama in battle. They fought at the site that would someday be called the Valley of the End, where Madara used the Nine-Tailed Demon Fox against Hashirama. Control of the Nine-Tails was ultimately taken from him and Madara was believed to have died. Despite appearing to have been defeated and gravely weakened, he was somehow able to acquire Hashirama Senju's powers to aid him in his future goals.

Uchiha Madara

Uchiha Madara / Sasuke / Itachi

Uchiha Madara

Sasuke from the moment a child is shown to be cold, harsh and unfriendly but with a great gift in the arts of ninjutsu and then one skilled in taijutsu and thanks to his sharingan genjutsus also to its unique and precious concern is to become powerful any price to meet two objectives, to kill his brother (Itachi Uchiha) and revive his clan, despises the fellowship and is very proud, even arrogant, as it is aware of his superior skills as an Uchiha. Later he discovers that Sasuke has not always been so, in his childhood was a loving child, happy and carefree, despite living in the shadow of his brother, whom his father, Fugaku Uchiha, paid much attention. Despite this, Sasuke was very close to his brother. After the death of his entire clan at the hands of Itachi, Sasuke hated him with all his might, transforming its character. As the story progresses, Sasuke comes to appreciate their bonds of friendship and put aside their desire for revenge, especially thanks to his relationship with Naruto Uzumaki and Sakura Haruno, who comes to appreciate as very important to him. However, once he is tempted by Orochimaru and defeated again by his brother, Sasuke decides to give up its ties to consider an obstacle and becomes a being cold, impassive and obsessed with their goals, for which compliance would not hesitate to ally with Orochimaru and trying to kill Naruto to obtain the Mangekyo Sharingan, but ultimately it does not to follow the footsteps of his brother.