長州 Explained

長州 may refer to:

• (長州), a prefecture between the 7th and 8th centuries in modern Inner Mongolia
• (長州), a province between the 8th and 9th centuries in modern Vietnam
• Chōshū Domain, a feudal domain of Japan during the Edo period
• Nagato Province, abbreviated name was Chōshū (長州), province of Japan located in what is today Yamaguchi Prefecture