Meiji oligarchy
A major reform was the effective expropriation and abolition of the samurai class, allowing many samurai to change into administrative or entrepreneurial positions, but forcing many others into poverty. The southern domains of Satsuma, Chōshū and Tosa, having played a decisive role in the victory, occupied most of the key posts in government for several decades following the conflict, a situation sometimes called the "Meiji oligarchy" and formalized with the institution of the genrō. In 1869, the Yasukuni Shrine in Tokyo was built in honor of the victims of the Boshin War.