The final battle between Sasuke and Naruto in the Naruto Shippuden series takes place at the Valley of the End, ending with both Sasuke and Naruto sacrificing an arm. It is a painful moment, not only physically but also mentally, as their friendship is put to the ultimate test.
It was a tense confrontation that finally had to happen after a long-standing feud between them. In the match, both used all their strength and skills, but at the same time, they paid a heavy price.
Why was there a two-way battle between Sasuke and Naruto?
Back in the first stage, when Sasuke and Naruto were still young, their first battle took place at the Valley of the End. Sasuke, after witnessing the murder of his family, decided to leave Konoha with a determination to take revenge. Naruto, who had always considered Sasuke his best friend, could not let his friend go without any resistance.

The second time the battle is decisive, when both fight not only for their own ideals but also for their past and friendship. Sasuke, with a broken heart and the desire to destroy everything to rebuild the world. And Naruto, who wants to save the world and always hopes to save his friend from the dark path.
The two battles summarize the tense events and conflicts that have lasted since the two characters' childhood. The relationship between Sasuke and Naruto , from friendship to confrontation, is an important factor that drives this battle. This is not only a battle of power but also a struggle between two opposing ideals, and more deeply, the final resolution of past traumas.
The price is high but it has come to an end
The second battle was on, both Sasuke and Naruto knew they had to end it all.
Sasuke, possessing the Rinnegan in his left eye - one of the three Great Dojutsu Eyes, known as the most powerful type of dōjutsu, unleashed powerful attacks on Naruto. Naruto awakened the power of the Six Paths, responding fiercely to Sasuke.

This iconic battle had no clear winner: both were exhausted and had lost an arm. And both lost arms were their dominant ones, Sasuke's left and Naruto's right.
This surprised fans because both of them lost an arm, which was too much. But the author Kishimoto himself revealed that this ending was predetermined. The author implied that the two boys had to resolve their conflict with their fists to convey all their emotions and end everything.
As fans of the series, readers will understand that Sasuke and Naruto have no intention of defeating each other. They both have more of an internal struggle where they have to face their deep emotions of friendship, hatred, and sacrifice.

After the battle ended, Sasuke and Naruto were both in critical condition. Naruto had his arm restored thanks to Hashirama Senju's help. Meanwhile, Sasuke realized that Naruto was willing to sacrifice his life to save him from the past. Sasuke refused to receive a prosthetic arm because he wanted to remind himself of his past mistakes and start his journey of redemption. He traveled around and helped people in silence.
This battle is one of those anime moments that makes you cry .
Even though they didn't say it, Sasuke and Naruto 's friendship was now stronger. The loss of an arm wasn't the end, but an important turning point in their journey to adulthood.
The loss of Sasuke and Naruto 's arms represents the price of hatred, fighting, and hurting each other before coming to terms. It is also a symbol of sacrifice, reminding that peace can only be achieved if both sides give up a part of themselves and move towards a better future.