In Art of War, number of soldier is not deciding factor. Gut, planning, strategy, patriotism... are also importance. You saw our policemen hiding in the ambulance in L I saga. Soldier scare of ang moh uncle and asked mom for help!
It's good to see a small country with such a capable defense force.
Kudos to the PAP for taking defense seriously. Many country pay lip service to defense until it is too late. Singapore has not made the same mistake.