It is important to understand how Singapore’s National Service obligations might affect your family.
Singapore does not recognise dual nationality beyond the age of 21 years. All male citizens of Singapore are liable for National Service. All male children granted Permanent Resident status as part of their parents’ Permanent Resident application are also liable for National Service.
National Service is normally served for a period of two years from the age of 18 years, with additional reservist requirements lasting until the age of 40 years (50 in the case of officers).