Fundamentally unsound.
Should there be a global conflict, Singapore will be a prized possession between east and west; it will be the target for both parties. Whoever controls it controls the sealane between east and west. Whoever controls it, controls the busiest port and one of the largest oil refineries and storage facilities in the world. Whoever seizes this jewel, will safeguard it like hell and whoever lost it will fight like hell to control it. The smart Japanese called it Syonan-to; and the stupid British called it the Gibraltar of the east. The little red dot is the bullseye.