HEAD TO HEAD
Japan vs Ukraine
Verdict
Japan holds a 61–39 advantage over Ukraine on the Relative Advantage Index, a clear margin.
The margin is driven by economic size (GDP) (95% of the combined total, $4.0tn) and logistics & power projection (82% of the combined total, 270). Ukraine leads on active personnel and 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1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 by factor
| Factor | Japan | Share | Ukraine | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $62.2bn | 43%57% | $84.1bn | 33% |
Economic size (GDP) World Bank WDI | $4.0tn | 95%5% | $191bn | 27% |
Active personnel COW NMC | 247.0k | 26%74% | 688.0k | 20% |
Logistics & power projection OurAirports | 270 | 82%18% | 58 | 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.
