22/08/2026
Numbers Don't Lie: Rising Defence Budget Amongst Global Rival Blocks And Indo- Pacific
Defence spending across Asia and Oceania rose 8.1 percent in 2025, the sharpest year-on-year jump since 2009, according to SIPRI. The increase is not incidental. It reflects a hardening security dilemma between two loose blocs: US-aligned states (the United States, Japan, South Korea, Australia, the Philippines) building interoperable capability to counter Chinese power projection, and China modernizing its forces to contest exactly that access. Russia sits adjacent to this core rivalry, its own budget shaped primarily by the war in Ukraine rather than the Indo-Pacific itself, but its growing military cooperation with Beijing and Pyongyang means its trajectory is increasingly read as part of the same contest.
Japan's own trajectory illustrates how fast this shift is moving: its defence budget climbed from 1.4 percent of GDP in 2025 to 1.9 percent in 2026, reaching Tokyo's long-stated 2 percent target a year ahead of schedule, driven explicitly by concerns over China's military expansion and North Korea's missile programme.
The blocs, side by side:
Summing the budgets tells a clearer story than any single country's figure. Grouping the US-aligned states in this analysis (United States, Japan, South Korea, Australia, and the Philippines) against China and Russia: the US-aligned bloc's combined spending rose from roughly $1.11 trillion in 2025 to $1.19 trillion in 2026, a gap so large relative to the China-Russia bloc's $526 billion falling to $447 billion that raw totals alone risk overstating the strategic picture.
Two caveats matter here. First, China's figure is Beijing's official announced budget; independent estimates, including the Pentagon's own assessment, put actual Chinese military spending 32 to 63 percent higher due to off-budget research, paramilitary, and procurement costs not captured in the official number. Second, Russia's 2026 figure is a government plan already showing signs of being exceeded, with first-quarter 2026 spending running at a pace consistent with a far higher full-year total. Neither bloc total should be read as a precise budget so much as a directional signal of where resources are being committed. India and Vietnam are excluded from both totals here, since neither is treaty-aligned with either bloc and both are better understood as hedging powers rather than members of either grouping.
What experts say this means for smaller states
The sharpest critical commentary focuses on states caught in the middle rather than on the two poles themselves. A Reuters analysis captures the trend concretely: Asia is sliding into an arms race as smaller nations that once stayed on the sidelines build arsenals of advanced long-range missiles, following China and the United States, driven by security concerns over China and a desire to reduce reliance on the US. Vietnam's BrahMos acquisition and the Philippines' expansion of coastal missile batteries fit this exactly, middle powers concluding that hedging now requires hard capability, not just diplomacy.
But the East Asia Forum pushes back against a purely bipolar reading. Its analysis argues that Indo-Pacific middle and small powers are not bystanders but active participants shaping regional order, and that when the legitimacy of both Washington and Beijing is in question, these states push back against both powers' strategies rather than simply picking a side. The International Crisis Group's 2025 report echoes this pattern empirically, noting South Korea's ambition to supply 5 percent of global arms exports by 2027 and Taiwan's roughly 5 percent-per-year defence spending increases, small and middle powers arming not just defensively but competitively, reshaping the regional arms trade itself.
A further, more unsettling thread comes from the Lowy Institute: as US extended deterrence is questioned, a fraying nuclear umbrella could prompt non-aligned states such as Singapore, Thailand, Vietnam, or Indonesia to consider independent nuclear options. Experts are divided on whether a more crowded nuclear environment would produce stabilizing deterrence or a higher risk of miscalculation.
What it means for ordinary people:
The clearest cost to civilians is the straightforward fiscal one. The Council on Foreign Relations frames it bluntly: governments today want both guns and butter, but with global government debt nearing 100 percent of GDP, financial markets are signaling that many can no longer afford both. SIPRI's own researchers have separately warned of a "guns versus butter" trade-off in which growing defence budgets increase public debt and crowd out spending on education and health, though the empirical picture is contested: a Kiel Institute working paper looking at historical rearmament episodes found little evidence that military expansions are actually financed through cuts to social programs, with the fiscal legacy instead showing up mainly as higher public debt over the long run.
For the smaller, poorer states in this analysis, the Philippines and Vietnam in particular, that debt and opportunity-cost pressure lands harder proportionally than it does for the United States, China, or Japan, since a comparable percentage-point increase consumes a much larger share of a far smaller national budget with fewer alternative revenue sources to draw on.
The budget numbers are not just accounting. They are a real-time gauge of how contested the Indo-Pacific has become, and of how much smaller states and their citizens are being asked to absorb the cost of a rivalry they did not start.
Sources: SIPRI Trends in World Military Expenditure 2025; SIPRI, A Budget for a Fifth Year of War: Military Spending in Russia's Budget for 2026; US Department of Defense annual report to Congress on China's military; Reuters; East Asia Forum; International Crisis Group; Council on Foreign Relations; Lowy Institute; Kiel Institute for the World Economy; Center for a New American Security; national defence budget documents (US, Japan, South Korea, Australia, Philippines)
