He used to safeguard Singapore waters as a Navigation Systems Supervisor. Now, ME3 Woon Wei Wen trains the next generation in charting their own path.

ME3 Alexis Quek cuts a kind and caring figure, even when things get tense in the air traffic control tower.

Despite his tough exterior – and the tough training he dishes out – Commando 2WO Lam Wai Keung believes in encouraging his trainees.

MAJ Muhammad Redza Bin Mohd Asri treats his soldiers like his siblings, is not afraid to ask for brutally honest feedback and enjoys making a difference in his trainees' lives.

She looks fierce when she's not smiling – but beneath ME3 Eileen Tham's stern appearance is a warm and caring "ma'am" who often goes above and beyond for her trainees.

Easy-going, flexible and humorous – that's 2WO Suraindran Sanjeev's training style when it comes to instructing NSmen.

ME3 Jimmy Lim may be a weapon systems expert but his trainees have never come under fire for making mistakes.