Not to look down on our country but one nuclear strike on
Malaysia can led to total annhilation of Singapore >.<
Not very likely, unless they hit somewhere near like JB.
The typical H-bomb of 20MT yield have a lethal
radius of roughly 17km, where it will destroy most civillian
buildings. At 47km there is only moderate damage,
though you have to worry somewhat about the fallout.
So by most calculations you need at least a two or three
overlapping H-Bomb strikes to totally annhilate Singapore, or
an oversized bomb like the 50MT Tsar Bomba.
But seriously if you keep worrying about nuclear war and say
there's no need for the SAF since no point, then see what exactly
will happen when we really have NO SAF and other nations find this
little island a pushover.