Japan holds a 72–28 advantage over Poland on the Relative Advantage Index, a decisive margin.
The margin is driven by economic size (GDP) (81% of the combined total, $4.0tn) and military spending (57% of the combined total, $62.2bn).
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Japan | Share | Poland | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $62.2bn | 57%43% | $46.8bn | 33% |
Economic size (GDP) World Bank WDI | $4.0tn | 81%19% | $918bn | 27% |
Active personnel COW NMC | 247.0k | 68%32% | 114.0k | 20% |
Logistics & power projection OurAirports | 270 | 88%12% | 37 | 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.