The former Shogunate forces, while they had far superior military strength and had westernized troops, were demoralized and disintegrated because Yoshinobu TOKUGAWA fled, leaving his officers and soldiers behind.
それでも旧幕府軍の兵力は上回っており洋化部隊も温存されていたのだが、徳川慶喜が将兵を置き去りにしたまま脱出したこともあり士気が低下し自壊した。