I noticed that all condos have bunkers in Singapore. It's apparantly also a building regulation to have a bunker in newly build condos. I'm just unsure what the incentive was to create this regulation in the first place? What is it that they are supposed to protect you from?
Singapore is very peaceful (last invasion dates back to the Japanese during WWII, not counting the failed Indonesian bombings) so I'm actually curious about this one considering we have one and so do all other expats I know.