Pulau Tekong Island: WIKIPEDIA
24 MARCH SINGAPORE: All recruits going into their Basic Military Training phase in Pulau Tekong will be quarantined to the island for 2 weeks, an Army spokesperson told The Merlion Times.
“This is one of the robust measures the SAF has in place to ensure the safety of all soldiers,” said 3SG Ken Ah-Teck Anh.
In addition to putting the new soldiers in quarantine, they will also have to take their temperature before any strenuous activity. During drill-forming-up and parades, soldiers will also be taught the command ‘Dalam buka barisan ke kanan lu rus’ to practice social distancing.

As the recruits will already be rolling around on the dirt during their daily 5 Basic Exercises, they will be filthy enough to kill any germs and thus do not require any hand sanitiser.
This announcement has nothing to do with the ongoing Coronavirus spread, 3SG Anh clarified.