Total Defence

I think that we should participate in total defence so that Singapore can be a safer place to live in.For example,if we see a mysterious parcel or bag lying somewhere,we can call the police or inform an adult.The bag or parcel may contain bombs or some viruses.If we don't participate in total defence,we wouldn't care about all these things.And if the bomb explodes,it may hurt or even kill by-passers.If the virus is let out,and if it contains "SARS",the whole of Singapore will suffer.So we must participate in total defence in order to continue to keep Singapore a safe place for us to live in.