noun
Satsuma and Chōshū (clan alliance)
Historical term referring to the alliance between the Satsuma and Chōshū domains during the late Edo period, which played a key role in the Meiji Restoration.
薩長同盟は幕末の重要な出来事だ。
The Satsuma–Chōshū Alliance was an important event at the end of the Edo period.