ARMY is a collective term for the fans of
popular South Korean boy-group,
BTS.
ARMY stands for
Adorable Representative M.C. for Youth, and ARMY is especially known by media to be an infinitely dedicated and loving fanbase for their beloved
BTS. American media has taken note of this recently, but in
Korea, ARMY has remained prominent over the last few years in the idol community.
Although ARMY is technically an abbreviation, hence the capitalization of its letters, it is much more common to see it being used as the improper noun “army” meaning legion of soldiers, and as such it can be lowercase with no periods denoting abbreviation.
Additionally, there are different subsections of ARMY.
• “K-ARMY” denotes Korean ARMY.
• “I-ARMY” denotes International ARMY, and basically means any
BTS fans whose nationality isn’t Korean.
Person 1: Hey, do you listen to K-
pop? I saw you followed EXO on Twitter.
Person 2: Yeah, I like K-
pop. I mostly listen to boy groups like
BTS.
Person 1: Oh, cool! Are you ARMY?