student soldier (in WWII)
Historical term for university or higher-school students conscripted as soldiers during World War II, especially under the 学徒出陣 mobilization.
See also: 学徒出陣
Memoirs remain of young people who were sent to the battlefield as student soldiers.
Compound of 学徒 (student) and 兵 (soldier). The term is historically tied to the WWII-era student conscription.