薩さっ長ちょう同どう盟めいMeaningsNoun1. Satchō Alliance; 1866 alliance between the feudal domains of Satsuma and Chōshū (Historical)Kanji used薩bodhisattva長long同same盟allyComposed of薩さっ長ちょうSatsuma and Chōshū (clan alliance)Noun同どう盟めいalliance; union; leagueNoun