Conscription in South Korea
By law, when a Korean man turns 18 years old, he is enlisted for "first citizen service," meaning he is liable for military duty, but is not yet required to serve. When he turns 19 years old (or, in some instances, 20 years old), he is required to undergo a physical exam to determine whether he is suitable for military service. The table below shows the physical exam's possible grades and their outcomes, according to the Military Service Act. Men must enlist by the time they turn 28 (Korean age).
The length of compulsory military service in South Korea varies based on military branch. Active duty soldiers serve 21 months in the Army or Marine Corps, 23 months in the Navy, and 24 months in the Air Force. After conscripts finish their military service, they are automatically placed on the reserve roster and are obligated to attend a few days of annual military training for 6 years.
Bae Sang-moon
Bae was embroiled in political controversy late 2014 after his work visa expired and he had yet to serve the compulsory twenty-one months in the South Korean military required of men age 18–35. By comparison, K. J. Choi and Y. E. Yang completed their military requirements before turning professional. Bae countered that he had residency in the U.S. and was exempt. In July 2015, a South Korean court ruled Bae spent too much time in South Korea to be exempt and must fulfill his military requirement. In response, the PGA Tour created a "Mandatory Obligation" category that would allow Bae to retain his exemption after completing his service, similar to the major medical exemption.