A very great battle really ensued on "Naruto Shippuden" Episode 476 and 477 with Sasuke convinced on killing Naruto. Naruto, on the other hand, just wants to save Sasuke.
In the one hour Naruto vs Sasuke fight for "Naruto Shippuden" episode 476 and 477, the two friends clash to death. Sasuke's brother Itachi explained to Naruto that the two of them are like brothers although they are not related by blood and that he is the only person who can stop Sasuke. "I'm leaving Sasuke to you," Itachi said to Naruto.
When Lord Sage talked to Naruto and Sasuke, he acknowledged that whatever transpires will be up to the two of them. "Sasuke and I are not real brothers but I think we can make peace with each other," Naruto said as he is convinced Sasuke will stay with him.
Sasuke, however, had other plans as he noted that because Itachi is gone, he feels that he is finally and truly alone. But because Naruto still lives, he needs to cut him down as his version of the Hokage is by severing all bonds.
Lord Sage asked Naruto why he wants peace with Sasuke and Naruto simply answered that because they are good friends. Sasuke, on the other hand, was asked the same question and the answer he gave Lord Sage was the same because Naruto is his closest friend.
During the fight in "Naruto Shippuden" episode 476 and 477 Sasuke asked Naruto why he just won't give up since he has been alone from the start and he does not know how it was to have a family and to lose all that.
Naruto answered that he will not let Sasuke kill him because Sasuke wants to be all alone again and he cannot let that to happen especially that they both know how that feels like.
Sasuke finally revealed to Naruto his true intention as a Hokage and that is to be next villain since the Five Villages have already been united. He thinks that the villages will have no one to fight since their enemies are already gone. They may soon turn to each other again which could mean destruction for all.
As revealed in "Naruto Shippuden" Sasuke will make himself the one being hated by all and although he may die he still has an option to get resurrected and may have immortality as he already has the Sharingan and possesses the power of the Rinnegan.
To beat Naruto in their fight in "Naruto Shippuden" episode 476 and 477, Sasuke combined all the tailed beasts chakra together and made him more powerful. But Naruto used his Jutsu which able him to survive which also weaken Sasuke, his chakra, and his left eye's abilities. The two who almost had nothing left to give on their fight continued it with a feast fight until no one could stand up.
It seems "Naruto Shippuden" Episode 476 and 477 made Sasuke a very powerful being since he was still able to absorb Naruto's chakra because of his Rinnegan abilities. In a last effort to stop Sasuke with the help of the tailed beast and most of their friends who passed away also gave them Naruto some strength to finally end the fight between the two friends.
