Quora Answer: How Can Singapore Expect to Win a War with Malaysia?

The following is my answer to a Quora question: “How can Singapore expect to win a war with Malaysia?”

Singapore’s FY2025 MINDEF budget reached S$23.4 billion, a 12.4 per cent nominal increase, announced by then Defence Minister Ng Eng Hen on 3rd March 2025.  The FY2026 budget rose to S$19.7 billion in core defence spend, plus S$1.62 billion in development expenditure, up 19 per cent on the revised 2025 allocation.  Janes Defence Budgets projects Singapore's total defence spend will exceed US$27 billion by 2030.

MINDEF’s spending covers three categories: human capital for training regulars and national servicemen, operating and development expenditure to maintain readiness, and investment in new capabilities.  Personnel costs stay moderated by the National Service model.  All able-bodied male citizens and second-generation permanent residents serve two years of full-time National Service, followed by reservist obligations until age 40, or 50 for officers.  This keeps standing personnel costs lower than a fully professional force of comparable size would require, freeing budget share for equipment and technology.

Singapore holds defence spending at 3 per cent of GDP, capped at 6 per cent of total government spending.  The 2026 Budget Statement said, “For now, we expect to keep defence spending at about 3% of GDP.  But we are prepared to spend more if the need arises.”  MINDEF’s rationale for steady, multi-year investment rather than sudden spending spikes is that defence programmes carry long gestation periods, and year-to-year fluctuations undermine procurement planning and training continuity.

The Force Multipliers

Singapore has ordered 20 F-35 fighters, 12 F-35B short take-off and vertical landing variants and 8 F-35A conventional variants, with first F-35B deliveries scheduled for late 2026, replacing the ageing F-16C/D Block 52+ fleet over the following decade.  The Republic of Singapore Navy is expanding its Type 218SG Invincible-class submarine fleet to a steady-state total of six vessels, four already in service or delivering through 2028.  The US State Department approved a US$2.3 billion sale of four Boeing P-8A Poseidon maritime patrol aircraft and eight Mk 54 torpedoes in January 2026, replacing five Fokker 50 aircraft in service since 1993.  Budget 2026 also prioritised unmanned systems and cyber capability, building on the Digital and Intelligence Service established in 2022.

The Regional Comparison

Malaysia’s Ministry of Defence received RM21.7 billion under Budget 2026, a 2.92 per cent increase on the prior year.  Defence Minister Datuk Seri Mohamed Khaled Nordin tied the allocation to modernising the Malaysian Armed Forces against South China Sea tensions, per the Mid-Term Review of Malaysia's own Defence White Paper.  At US$4.6 billion, Malaysia’s budget is under a quarter of Singapore’s, from a population and landmass several times larger, a gap Singapore’s multi-year, capability-first procurement strategy has widened rather than narrowed.

Malaysia’s procurement record has drawn sustained scrutiny.  The Littoral Combat Ship programme, contracted in 2011 for six vessels by 2019, had delivered none by 2024, with cost overruns and corruption findings from Malaysia's own Public Accounts Committee investigation into Boustead Naval Shipyard.  A budget constrained by this kind of procurement failure buys less capability per ringgit than the headline figure suggests, independent of the spending gap already in Singapore's favour.

Defence Spending Per Capita

Singapore’s FY2025 budget of S$23.4 billion, US$17.7 billion, against a population of 6.11 million, works out to US$2,897 per person.  Malaysia’s Budget 2026 allocation of RM21.7 billion, US$4.62 billion, against a population of 34.2 million, works out to US$135 per person.  Singapore spends about twenty-one times more per capita on defence than Malaysia.

Singapore’s spending concentrates on fifth-generation aircraft, submarines, maritime patrol capability, and digital infrastructure, rather than base pay or basic equipment replacement.  This points to a force prioritising capability depth and technological edge over raw manpower expansion.  Singapore fields 51,000 active personnel, including 32,000 full-time national servicemen, a comparatively small standing force sustained through reservist mobilisation and this steady, compounding investment in force multipliers.  Malaysia’s own defence budget, competing against other national fiscal priorities and hampered by documented procurement failures, has not matched this strategy in scale or discipline, and the gap in effective capability per dollar spent runs wider than the per capita figures alone show.

The Scenario

Before a single shot is fired, the difference in military spending and posture is a massive gulf.  However, wars are not won on paper.  They are won in the field.  In terms of raw logistics, Singapore has the clear advantage.  The Malaysian Armed Forces’ performance has not been impressive.

The Lahad Datu Standoff

Around 100-to-300-armed followers of Sultan Jamalul Kiram III landed near Tanduo, Lahad Datu, in mid-February 2013, asserting the Sulu Sultanate’s historical claim to Sabah, territory leased to the British North Borneo Company in the 19^th century.  Malaysian security forces attempted to force them out peacefully first, setting a series of deadlines, the last expiring at midnight on 27^th February.

The initial engagement, a 30-minute shootout on 1^st March, killed two Malaysian police officers and 12 Filipino gunmen.  Clashes continued through the following weekend with further casualties on both sides.  A full military response did not launch until 5^th March, three weeks after the group first landed.  That gap let the standoff harden into what Malaysian officials themselves later called the country’s biggest security crisis in years, and gave the intruders time to entrench in terrain, oil palm plantations around the coastal village of Tanduo, that favoured a defensive dispersal.

When it came, the assault was decisive in firepower.  Malaysia deployed F-18 and Hawk fighter jets, mortar fire, and a ground assault against the remaining gunmen.  Security forces achieved their objective and suffered no casualties during the final assault itself.  Total losses across the three-week crisis were twenty-seven dead: nine Malaysian police officers and 18 Filipino gunmen, plus the two officers killed in the earlier 1^st March clash.

The operation's actual conclusion was messier than the firepower deployed suggests.  Following the airstrikes, Malaysian security forces conducting mopping-up operations had not located any militant bodies in the immediate aftermath, and the national police chief publicly raised doubts about whether the assault had actually killed or captured the intended targets, rather than allowing at least some gunmen to slip away through the surrounding plantation terrain.  A spokesman for Sultan Jamalul Kiram III claimed the group's fighters had escaped and remained alive, contradicting the government’s own framing of a clean military success.

MAF’s performance splits into two distinct phases with two different grades.  The political and security response in the first three weeks was slow, allowing a group of 100 to 300 lightly armed intruders to entrench, kill nine police officers, and dominate the news cycle before a full military response was ordered.  The eventual assault itself demonstrated genuine firepower and combined-arms capability, with air, mortar, and ground forces coordinated effectively, without Malaysian casualties.  What it did not demonstrably achieve was a clean, verified elimination of the threat, with the government's own police chief unable to confirm the operation had destroyed the force it targeted, rather than simply displaced it.

Reality

If war broke out, Singapore would be in Kuala Lumpur within 3 days, and would have achieved every military objective between Singapore and the Mersing line.  The Malaysian government is not filled with absolute idiots.  They know they cannot win a conventional war, and they do not plan to.  What they will do is disperse their leadership and command structure, and do what their regular military is exceptionally good at – jungle-based low-intensity conflict.  Singapore, despite its military superiority, does not have the strategic depth for a prolonged conflict, and no logistical means to hold both Peninsular Malaysia and East Malaysia.

A conflict in the region where the busiest shipping lanes meet would swiftly involve the US, to protect the oil lanes, and China, to exert its hegemony over the South China Sea region.  The US would quickly aim to do what it did the last time, during the Konfrontasi, and send a carrier group to block the Malacca Straits.  China would have a battle group past Macclesfield Bank to block the other end of the Singapore Straits.  All parties would be forced to the negotiating table, and the status quo restored.

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Terence Nunis | Executive Chairman, Equinox Zenith | Author, The 1% Playbook: The Billionaire Cheat Code