HEAD TO HEAD
Indonesia vs Japan
Verdict
Japan holds a 66–34 advantage over Indonesia on the Relative Advantage Index, a clear margin.
The margin is driven by military spending (81% of the combined total, $62.2bn) and economic size (GDP) (74% of the combined total, $4.0tn). Indonesia leads on active personnel.
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 by factor
| Factor | Indonesia | Share | Japan | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $15.0bn | 19%81% | $62.2bn | 33% |
Economic size (GDP) World Bank WDI | $1.4tn | 26%74% | $4.0tn | 27% |
Active personnel COW NMC | 396.0k | 62%38% | 247.0k | 20% |
Logistics & power projection OurAirports | 198 | 42%58% | 270 | 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 2026-10-22.
