You can watch this video at https://koreanow.com/ BTS Jimin and Jung Kook will report to the personnel replacement unit of the Korean Army's 5th Infantry Division, to begin their 18 months of mandatory military service. The boot camp is where Jin, who has recently been promoted to sergeant, is currently serving as a drill instructor. Jimin and Jung Kook will be assigned to a unit after finishing five weeks of basic training for active-duty personnel.