ELINT refers to electronic intelligence, means gathering
electronic signals etc (E.g. Radio). For any miltitary to operate,
there need to be communication in between the forces. It can
provide critical info if intercepted. E.g. Troops movement.
USA not stopping Osaman is not relevant to this dicussion on ELINT.
That incident is a failure to act on intelligence gathered.
To fight a war, you don't decide you want to, and invade overnight.
Troops have to be prepared, and deployed. This applies to the
tanks, artillery, AA guns etc. Ships prepared and put out to sea.
It's a major coordination, and alot of movement of forces. Not you
happy happy, say whack then whack. All these increased activity
will be hard to hide, and will be noticed by various ELINT
assets.
Before any conflicts breaks out, tensions will be tightened. SAF do
not wait until last minute then call up our reserves one, that one
I can assure you. So caught napping? Nah!
You will be surprised how fast an airfield can be repaired. Also
it's impossible for them to bomb every road. Worst case is setup a
makeshift one. So don't worry, our planes will be able to land
somehow.
Don't worry. SG won't be caught napping. Can't say alot of stuff,
but I assure you Singaporeans is a Kiasu lot. Let's just say if
anybody trys anything funny, there will be hell to play. 
