Indonesia and Spain are close to evenly matched, 49–51 on the Relative Advantage Index.
Indonesia leads on active personnel (76% of the combined total, 396.0k) and logistics & power projection (65% of the combined total, 198), which Spain offsets elsewhere.
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Spain | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $15.0bn | 27%73% | $40.2bn | 33% |
Economic size (GDP) World Bank WDI | $1.4tn | 45%55% | $1.7tn | 27% |
Active personnel COW NMC | 396.0k | 76%24% | 124.0k | 20% |
Logistics & power projection OurAirports | 198 | 65%35% | 107 | 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.