As Tobi prepares for the war against the Allied Shinobi Forces, in order to capture the two remaining jinchūriki and complete his Eye of the Moon Plan, he is approached by Kabuto Yakushi, a former associate of Akatsuki, who requests that he be allowed to help in the war-effort. To force Tobi's consent, he resurrects several deceased Akatsuki members, followed by Madara Uchiha. Shocked that Kabuto had such information at his disposal, he allows Kabuto to assist him in the war and complied with his request to hand over Sasuke Uchiha, with the stipulation that this occurred once the war had concluded.

Madara is noticed by the enemy forces.
Frustrated when a revived Nagato is sealed by the recently freed Itachi Uchiha, Kabuto finds himself forced to use his trump card but it's only after Naruto Uzumaki takes out several more revived shinobi, that he has Mū summon the resurrected Madara to the field. Forcefully removing his coffin's lid before voicing his assumption that Nagato had finally used the Outer Path: Samsara of Heavenly Life Technique to bring him back from the dead, Mū corrects Madara, explaining that Summoning: Impure World Resurrection had been used instead. Somewhat shocked by the manner of his revival, he asks who was responsible. However, as Mū does not know, Kabuto takes full control and speaking through him, identifies himself as Tobi's assistant before informing Madara that he had been restored to an extent beyond even his prime. Finding it rather dreary to talk to him through a corpse, Madara questions Kabuto with what he knew of his prime but admitting his ignorance, Kabuto requests a demonstration.