Declaration of War

Declaration of war formalizes the world's response as the summit, fractured by Sasuke's attack and Tobi's intervention, faces the Akatsuki's ultimatum. The episode delivers the turning point — Tobi, unmasked as the self-proclaimed Madara, declaring the Fourth Great Ninja War and his Eye of the Moon plan to the assembled Kage. The five villages, ancient enemies, must unite or fall. It's the canon arc's pivot to all-out war, the declaration that reorganizes the entire world into a single alliance against a common, apocalyptic threat.