What is the reason behind the revenge of obito on the uchiha clan?


I can't find any reason why obito want revenge of his clan on the uchiha
massacre.. Any ideas?? But at this moment writing this.. I thought about obito
was telling itachi that he is madara.. So maybe obito said those words about
the revenge because the uchiha clan has betrayed madara..




I don't remember exactly that well anymore, but Obito I know he impersonated
Madara. Madara has left the leaf village. In episode 345 or episode 346 of
Naruto Shippuuden it was already shown that Obito was "supposedly Madara".
Madara then spoke through Obito and it was later said that Madara Uchiha was
manipulating Obito. Maybe that's what this is about :)

