Katsu Kaishū
Saigō Takamori led the victorious imperial forces north and east through Japan, winning the Battle of Kōshū-Katsunuma. He eventually surrounded Edo in May 1868, leading to its unconditional defeat after Katsu Kaishū, the "shōgun"s Army Minister, negotiated the surrender. Some groups continued to resist after this surrender but were defeated in the Battle of Ueno on July 4, 1868.