Netherlands holds a 64–36 advantage over Belgium on the Relative Advantage Index, a clear margin.
The margin is driven by military spending (67% of the combined total, $28.9bn) and economic size (GDP) (64% of the combined total, $1.2tn).
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Belgium | Share | Netherlands | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $14.5bn | 33%67% | $28.9bn | 33% |
Economic size (GDP) World Bank WDI | $671bn | 36%64% | $1.2tn | 27% |
Active personnel COW NMC | 23.0k | 40%60% | 34.0k | 20% |
Logistics & power projection OurAirports | 18 | 36%64% | 32 | 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.