Historical term for the Korean War. Often used in Japanese historical contexts; the more common modern term is 朝鮮戦争.
See also: 朝鮮戦争
The Korean War broke out in 1950.
His grandfather was on the Korean Peninsula during the Korean War.
朝鮮戦争 is the more common and neutral modern term for the Korean War. 朝鮮動乱 is a historical term, sometimes used in specific contexts or older texts.
Compound of 朝鮮 (Chōsen, 'Korea') and 動乱 (dōran, 'upheaval, disturbance'). The term reflects the Japanese historical perspective on the conflict.