Conscription in South Korea
Conscription in South Korea has existed since 1957 and requires male citizens between the ages of 18 and 28 to perform in the army compulsory military service. Women are not required to perform military service, but may voluntarily enlist.
Comparative military ranks of Korea
Both North Korea and South Korea share the same enlisted rank structure among all of their military branches. They also have enlisted ranks called "Corporal" and "Sergeant" in English, but they are not considered non-commissioned officer ranks, though they are treated as one if they hold an NCO position.