<P> 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 ) . </P>
<P> 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 ) . </P>
how old do you have to be to enlist in the army in korea
how old do you have to be to enlist in the army in korea
18
18