UCHIHA MADARA

Uchiha Madara was the main protagonist in the series. He was also the leader of the the uchiha clan.

Madara was one of the powerful shinobi during his younger age. He and his brother (Izuna Uchiha) was the first uchiha memeber who awakened their (mangekyo sharingan) by killing their closest friend. But since madara overused his eye and he don't know that the risk would be losing his eye sight forever he used his brother's own eyes to gain the (eternal mangekyo sharingan) in this state no matter how many times he used his eyes it has no risk at all. Itachi said that Madara fooled his own brother just to gain that stage of eye. But according to Madara, Izuna gave his own eyes for the future of their clan because Izuna believe that his brother would carry out the name of their clan as the powerful clan in the world.

Madara during his younger age

Uchiha Izuna younger brother of Madara

One of the rival of the uchiha clan was the Senju clan. Whenever uchiha moves senju moves also and all over the years they kept their clan's war. Hashirama senju act as a leader of the senju clan. Senju approached uchiha clan to stop their clan's war and have some peace and unite their clan and that was accepted by the uchiha. On that day the (Konohagakure) founded and instead of madara the entire village chose Hashirama to be their first hokage. Instead of relying to Hashirama, Madara challenged the leadership of Hashirama and because of that all uchiha member turned their back to Madara because they think that Madara only want some more power. Which only mean that ever since they don't want Madara as their leader. And Madara left his village with hatred.

Konoha was founded.

Madara later challenged Hashirama's power and they fought in the valley of end. Madara used the nine-tailed demon fox against Hashirama but it was taken away from him and believed that he died after that battle. Although he lose on that battle still he managed to have some DNA from Hashirama and later during the fourth shinobi world war he was able to used (wood release techniques) and not only that before his death he managed to awakened his rinnegan that was revealed during his fought with Onoiki.

Madara vs Hashirama

When it comes to battle Madara was one of the powerful shinobi. Powerful enough to challenged Hashirama. His eyes was one of his main weapon in his every battle because of this eyes he took control of the nine-tailed demon fox. During the fourth shinobi world war when Madara was resurrected by Kabuto and show his powerful attack to the Kage's. Although he was a man that full of pride and don't like to praised other people yet he said that the combination of Mei and A was a very good offense and the combination of Onoiki and Gaara was a very excellent defense. Even in taijutsu and ninjutsu Madara was very excellent and very high in speed. He can easily make a counter attack and can analyse his opponents ability. No wonder why all the kage's gathered together when Madara was ressurrected during the fourth shinobi world war. 

Madara during the fourth shinobi world war.

eternal mangekyo sharingan of Madara