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When CO says chiong sua: NSman team training to scale Mt Kilimanjaro

05 Jun 2026

The commanders of 411 SAR are summiting the mountain as a capstone to their unit’s NS journey.

Story by Joshua de Souza

Photos by Loh Yu Ze


On a Sunday morning, my photographer and I stood beside the iconic Bukit Timah Nature Reserve rock. We were meeting a group of NSmen (Operationally Ready National Servicemen) from 411th Battalion, Singapore Armoured Regiment (411 SAR).

The unit, which completed its Army Training Evaluation Centre (ATEC) evaluation in 2025, will be entering its MR (MINDEF Reserve) phase next year.

And the 411 SAR commanders had an interesting idea for how they would cap off their NS (National Service) journey: climbing Mount Kilimanjaro!

An experienced climber who has scaled peaks like Mt Asama and Mt Everest, Commanding Officer (CO) Lieutenant Colonel (LTC) (NS) Leow Kah Shin will go from leading them in ATEC to leading them up Africa’s highest mountain.

The 7-man team of NSmen are expected to hike about 70km to reach the 5.9km-high Uhuru Peak on Mt Kilimanjaro, in a 10-day expedition from 6 to 16 Jun.
The 411 SAR commanders meet every Sunday morning to climb Bukit Timah, with friends and family occasionally joining in.

In a test of stamina and lung capacity, we joined them on their training hike up Bukit Timah Hill, interviewing LTC (NS) Leow, Motor Transport Officer (MTO) Lieutenant (LTA) (NS) Alexander Cheong, and Regimental Sergeant Major (RSM) 2nd Warrant Officer (2WO) (NS) Ong Jia Ying along the journey.

LTC (NS) Leow, 46, is an avid mountaineer. He was the first Singaporean to summit Mt Everest and Mt Lhotse within 24 hours back in 2018!
While 2WO (NS) Ong has climbed mountains like Mt Rinjani on the Indonesian island of Lombok, Mt Kilimanjaro will be the tallest one the 41-year-old has ever attempted.
LTA (NS) Cheong, 33, is a fan of outdoor activities and pushing himself with physical challenges.

So, what are the most important things to prepare for climbing a mountain?

LTC (NS) Leow: Climbing a mountain is quite similar to a military operation.

First, you must ensure you have the appropriate equipment prepared for the operation. Being prepared is critical especially for Mt Kilimanjaro, where temperatures can plunge to -20 degrees Celsius and winds can exceed 70km/h on summit days.

Second, you must be physically fit for the terrain, which is why we’re training on Bukit Timah Hill in Singapore on weekends.

Finally, an expedition team needs to have good teamwork, where everyone watches out for each other, and that is something we have going at 411 SAR.

Hiking with load: Every expeditioner carries about 10kg of weight during their hike. 2WO (NS) Ong (second from right, in black), opted for his 15-month-old son, Asher, to be his training load that day!

How have you guys been training to boost your physical fitness?

2WO (NS) Ong: I do mostly cardio training, running between 5 to 10km per session, for about two to three sessions per week. Around two months before the expedition, we started trekking Bukit Timah with load, once every week.

LTA (NS) Cheong: Doing the “Stairway to Heaven” at Bukit Timah… it’s intense.

At the summit of Bukit Timah: The group reaches the summit after 20 minutes of steep incline. However (as the PIONEER team later learned!), the challenge is completing the remainder of the trail afterwards.
Captain (NS) Chua Zhan Teng (centre, foreground), Officer Commanding of Hawk Company. The 31-year-old helps to organise their meetings and training plans.

LTC (NS) Leow, what keeps you going back to climb mountains?

LTC (NS) Leow: For myself, I like to keep pushing the limits, albeit slowly and in a safe way. My mountain-climbing journey started more than 20 years ago, with small mountains first. Over time, the mountains became bigger and bigger.

I hope that the 411 SAR commanders can adopt the same spirit in their lives and never settle for the status quo.

NSmen from 411 SAR moving out for a Company Mission Exercise as part of their ATEC in 2023. [Photo: Army Facebook]
Commanders conducting a Map Planning Exercise during their 2023 ATEC. [Photo: Army Facebook]
411 SAR after completing their mission during their ICT in 2023. [Photo: Army Facebook]

What is an experience that you remember fondly with these guys?

LTA (NS) Cheong: The NS journey is truly underrated. You can never get an experience like this outside of ICT (In-Camp Training) – you and your buddies working towards a common goal.

2WO (NS) Ong: On New Year’s Day 2023, LTC (NS) Leow and I were running on the trail surrounding MacRitchie Reservoir. Five minutes into our run, it started raining heavily.

We decided to press on and finish the run as we were so ‘invested’. To us, it made no sense to stop running when we got up early on a holiday and (had already gotten) drenched.

No man left behind: During more challenging areas, leader LTC (NS) Leow (far left) will shift to the back to make sure everyone’s in view and nobody’s left behind.
Teamwork: LTA (NS) Cheong (left) lifting vines out of the way for 2WO (NS) Ong, who has Asher on his shoulders, to have a clear path ahead.

LTC (NS) Leow: I feel very proud and honoured to share such an amazing NS experience with the soldiers of 411 SAR.

Throughout our journey, we have undertaken amazing tasks together, and it is fitting that we will end our journey on a literal high with this expedition.

A Fire Support Coordinator attached to 411 SAR, 38-year-old Major (NS) Hux Lim (left, in blue) took part in several ICTs with the unit, and was keen to join the expedition team.
“Everyone okay?”: LTC (NS) Leow, the most experienced climber, emphasises the importance of keeping training progressive so that the whole team will be ready for the actual climb.

What’s your day job, and was it a challenge getting time off for this expedition?

2WO (NS) Ong: I do inventory control at NatSteel Holding Pte Ltd. Being away from work and probably uncontactable throughout the expedition, is definitely a challenge for my department and colleagues. My colleagues will have to start familiarising with my part of the work, weeks before the expedition.

LTA (NS) Cheong: I work in Investor Relations at Quantedge Capital, and I’m extremely thankful to currently be in an environment that does not stop me from taking these long breaks. They are also extremely supportive of ICT too.

For LTC (NS) Liew, this hike up Bukit Timah Hill is like a walk in the park (The PIONEER team, on the other hand, was breathless at the midway point).
LTA (NS) Cheong in strong spirits still.
2WO (NS) Ong’s “training load” all tuckered out, resting on behalf of his dad.

When you summit Mt Kilimanjaro, what's the first thing you’ll say?

LTC (NS) Leow: To my guys, I will say: "Let’s have a beer together!”

2WO (NS) Ong: Pang gang* loh!

LTA (NS) Cheong: Huh, that’s all?

*Hokkien for “time to knock off”

2WO (NS) Ong (right) with his wife, Jerlyn (left), 31 years old, and son Asher, who insisted on walking the last stretch of the trail himself.
2WO (NS) Ong (right) with his wife, Jerlyn (left), 31 years old, and son Asher, who insisted on walking the last stretch of the trail himself.

What were your family members’ reactions to you going for this expedition?

2WO (NS) Ong: I invited my wife to climb Kilimanjaro with me. She thought for a few seconds and told me I can go on my own. (laughs)

LTA (NS) Cheong: My wife wasn’t keen at first, but I assured her that I would practise hard and train progressively, building my fitness up for the climb.

Picture time! PIONEER passed the expedition team film cameras to capture moments during their climb. Stay tuned to see the photos they captured on Mt Kilimanjaro!

To LTC (NS) Leow, do you have any words to share with your men before the climb?

⁠LTC (NS) Leow: I will say the same thing that I say at the start of every ICT: “Be safe, and let’s go back safely to our families.”

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