noun, noun or participle which takes 'suru', intransitive verb
responding to a call-up for military service; answering a call-up
Formal military term for reporting for duty when called up. Used in contexts of conscription or mobilization.
彼は召集令状に応じて応召した。
He answered the call-up and reported for military service.
During the war, many young men were forced to respond to the call-up.