Indonesia holds a 71–29 advantage over Singapore on the Relative Advantage Index, a decisive margin.
The margin is driven by economic size (GDP) (72% of the combined total, $1.4tn) and logistics & power projection (95% of the combined total, 198). Singapore leads on military spending.
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side. Those factors are excluded and the remaining weights renormalised, never substituted.
| Factor | Indonesia | Share | Singapore | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $15.0bn | 46%54% | $17.4bn | 33% |
Economic size (GDP) World Bank WDI | $1.4tn | 72%28% | $547bn | 27% |
Active personnel COW NMC | 396.0k | 89%11% | 51.0k | 20% |
Logistics & power projection OurAirports | 198 | 95%5% | 11 | 20% |
Shares are each side's portion of the combined total for that factor. Weights are renormalised across the factors both sides publish — see the methodology. Data read 2026-08-04.
Every combination inside the top 30 of the Composite Power Index.
Bordering states — the comparisons people actually search for.