The soldier brother on the national K song is not real. Soldiers have strict military discipline, and military regulations prohibit soldiers from revealing their identity and making friends online, so be careful when making friends online.

Soldiers are the names of military personnel serving in the national army, including combatants and non-combatants, similar to ancient warriors and knights. Its duties are to defend national security, defend and guard national borders, stabilize government power and society, and sometimes participate in non-combat work, including disaster relief.