With the decision to enlist in the military of the idol group BTS, which represents the Republic of Korea, a special issue of military service for Korean artists has arisen. I thought that the heyday of K-pop would come around the world as BTS became the first Billboard No. There are voices saying that BTS should boldly allow artists to be exempted from military service in order to make the heyday of K-pop a reality. 

Source: https://ibighit.com/bts/kor/profile/

If BTS goes to the military, they will disband...? Debate on Special Military Service in South Korea

Starting with eldest brother Jin, all members of BTS decided to enlist in the military. The years-long controversy over BTS' military exemption has come to an end. This is because all seven members of BTS will be enlisted in the military in the Republic of Korea in order, but even within the Republic of Korea, there is a growing opinion that the military service exemption system, such as alternative service, should be improved on this occasion. The Republic of Korea is limited to sports stars and grants exemption from military service to athletes who have won medals at the Olympics or the World Cup. Regarding this, the statement that it is discriminatory against the exemption from military service, which does not apply to artists, is gaining strength.

SUGA of BTS, the next member scheduled to enlist in the military...?

The next oldest member of BTS after Jin is SUGA. Suga was born on March 9, 1993 and is expected to enlist in the military after Jin. After that, I think RM, J-Hope, Jimin, V, and Jungkook will enlist in that order.