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.
Singapore Armed Forces
Under the Enlistment Act 1970, conscription is mandatory for all "persons subject to [the] act", defined as those who are not less than 16 years and 6 months of age and not more than 40 years of age, with some exemptions and with no specific bias to gender (not limited to males). In practice however, it is only compulsory for all fit and able-bodied Singaporean men who have reached 18 years of age, and are not deferred for certain reasons, to be conscripted in military service, or Full-time National Service (NSF).