"During the First Shinobi World War, Tobirama, by that time the Second Hokage, led a team consisting of Hiruzen, Homura, Koharu, Danzō, Kagami Uchiha, and Torifu Akimichi. During a mission they started to be pursued by Kumogakure's Kinkaku Force, an enemy that somebody would need to distract and inevitably die at the hands of in order for the rest of the team to escape. Hiruzen volunteered to be the decoy, boasting that, as the strongest of their group, he stood the best chance of surviving the encounter; nevertheless, he asked Danzō to look after the others. Tobirama volunteered himself instead, and before going to his death he appointed Hiruzen as Third Hokage."