While many feel NS is a waste of time and country's resources, it is still a necessary option to protect the interest of the nation.
Having some soldiers to defend is better than none when the time calls for it during a riot or a crisis.
Honestly, war is no longer the same. It's all tactical and electronics. Look around you... there is no soldier or policeman patrolling singapore by foot. The fact is, the preparation is already done and its all pending activation.
Singapore is always ready operationally and each camp/unit are evaluated by random activation. But if an atomic bomb strikes, we dont need to prepare either as it will just wipe us out in a few hours.
So, count our blessings when we wake up each day to see sunshine.