Armed Forces Disciplinary Punishment Act Article 21

Rescission of enlistment. Whereas the recession of enlistment is imposed on a voluntary enlistment soldier, a ban on voluntary re-enlistment for a certain period, no less than one year but no more than five years, follows thereby.
中文原文 陸海空軍懲罰法第21條
廢止起役,志願士兵廢止原核定起役處分,並於一定期間不得志願入營;其期間為一年以上五年以下。

English translation for reference only; the Chinese text prevails. Not legal advice.