Well, their last name gives it away obviously.
They are from the same clan.
The only difference between them is the simple fact that
1) Uchiha Itachi & Sasuke are brothers.
2) Uchiha Madara & Izuna are brothers.
3) Whilst Uchiha Obito, is not a sibling of either.
So really, it is just the simple fact that they come from the same clan, that is all.
First things first; Obito is not related to any of them relationship-wise. Uchiha Madara is the puppet master and controls the destiny of Sasuke, Itachi, and Izuna. He is also Izuna's brother, best friend, and Rival. The same goes for Itachi and Sasuke. Itachi learned how to achieve the Mangekyou Sharigan from Madara, and Sasuke learned from itachi. And that is how the four are related other that by blood.
Other than the bloodline Uchiha Sasuke and Uchiha Obito have no relation. Obito was born and died way before Sasuke was even born.
Obito did survive, and it was revealed in chapter 599. The chapter features Obito when he was a kid and how he wanted to tell Rin that he loved her. However, Obito never got the chance. We do not know how Obito survived yet, but it all will be revealed next week. However there are many rumors:Theory 1: Zetsu found Obito dying, he saved him and attended his wounds. Obito's whole right arm was crushed, so Zetsu used his white substances to repair Obito's arm. Not only Obito's arm, but his whole body. After Obito was healed, he planned to go back, but somehow he must have been brainwashed by Zetsu before leaving, or Obito got the news that Rin died and trained hard to activate his Uchiha power to avenge the world, and create a world where no one will cry infront of graves. Throughout Obito's training he started wearing the ''mask'', and carried on all his schemes as Tobi. Obito had Zetsu's power as well, which changes his form and height. Obito's height would have changed dramatically from 154.2 cm to 175.0 cm. It was around this time that Obito mastered space-time ninjutsu, which is his special technique. Obito is one of the gifted Uchiha who can use the special space-time ninjutsu sharingan. Obito, however did not have all the power he needs with just one eye. Obito and Zetsu were close friends. They were one of the two who know each other the most. It was around this time that Obito led the nine tailed fox attack on the hidden leaf village. Obito fought a destined battle with his mentor Minato. Obito apparently failed his mission, and went away. During the fight with Minato, Obito lost his arm, and went to Zetsu to regenerate it again. Obito at some time went and found Kisame as well, which makes sense to to the part where Kisame knows who Tobi is.
more than likey but we do not see any for we only see sasuke Itachi and thre farther and obito fromthe uchiah clan but it is possable
he blow hisself up when trying to kill sasuke but sasuke manage to escape by using madra the snake he develop from orochimaru. Noooooo!!! Deidara mah awesome babii died!! dam yuh Sasuke! well not exactly. I wonder how they ended up fighting...these are the questions that haunt meh. Lolsz i always wanted to say that. :)
Because Tobi is from First hokage generation and Obito was from Kakashi generation.
Other than the bloodline Uchiha Sasuke and Uchiha Obito have no relation. Obito was born and died way before Sasuke was even born.
No Sasuke only has one sibling and that's Itachi.
becauze he have obito's sharingan eye.
A good team for a Genin to use in Naruto Arena is Zaku, Temari, and Ten-Ten. They are basically all range types but they have very powerful attacks. It's hard to make up a strategy for this type of team because its almost common-sense and also, it depends on which type of energy you get. Another one is Sasuke, Obito, and Rin. Activate Sasuke's sharigan on whatever opponent you think is the hardest to beat. If you can't, then stall till you can by using Obito's sharigan, Obito's stab, Rin's healing etc. Then just use Sasuke and Obito on that opponent. More specifically, use Sasuke's Chidori or Lion Combo, whatever you can. Also, you can use Obito's piercing stab. Remember to focus on your teammate's health. Use Rin to heal.
Oh yeah, good question! He's not.
no obito is obito
Obito did survive, and it was revealed in chapter 599. The chapter features Obito when he was a kid and how he wanted to tell Rin that he loved her. However, Obito never got the chance. We do not know how Obito survived yet, but it all will be revealed next week. However there are many rumors:Theory 1: Zetsu found Obito dying, he saved him and attended his wounds. Obito's whole right arm was crushed, so Zetsu used his white substances to repair Obito's arm. Not only Obito's arm, but his whole body. After Obito was healed, he planned to go back, but somehow he must have been brainwashed by Zetsu before leaving, or Obito got the news that Rin died and trained hard to activate his Uchiha power to avenge the world, and create a world where no one will cry infront of graves. Throughout Obito's training he started wearing the ''mask'', and carried on all his schemes as Tobi. Obito had Zetsu's power as well, which changes his form and height. Obito's height would have changed dramatically from 154.2 cm to 175.0 cm. It was around this time that Obito mastered space-time ninjutsu, which is his special technique. Obito is one of the gifted Uchiha who can use the special space-time ninjutsu sharingan. Obito, however did not have all the power he needs with just one eye. Obito and Zetsu were close friends. They were one of the two who know each other the most. It was around this time that Obito led the nine tailed fox attack on the hidden leaf village. Obito fought a destined battle with his mentor Minato. Obito apparently failed his mission, and went away. During the fight with Minato, Obito lost his arm, and went to Zetsu to regenerate it again. Obito at some time went and found Kisame as well, which makes sense to to the part where Kisame knows who Tobi is.
Yes. Tobi, aka Obito Uchiha, dies while protecting Naruto and Sasuke from Kaguya. She tries to impale the pair with a bone spear attack, Obito and Kakashi move to take the hits. But to protect Kakashi too, Obito uses Kamui to make himself take both attacks. Already battered and worn beyond endurance, Obito's body begins to crumble, and he dies with a smile on his face.
No.
Sasuke Uchiha, Tobi AKA Obito Uchiha, Madara Uchiha, Shisui Uchiha, Kakashi Hatake, Danzo and Itachi Uchiha.
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more than likey but we do not see any for we only see sasuke Itachi and thre farther and obito fromthe uchiah clan but it is possable