CONFLICTIQ
HEAD TO HEAD

Japan vs Ukraine

Japan
61%
RAI
Ukraine
39%

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1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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

FactorJapanShareUkraineWeight
Military spending
SIPRI Milex
$62.2bn
43%57%
$84.1bn33%
Economic size (GDP)
World Bank WDI
$4.0tn
95%5%
$191bn27%
Active personnel
COW NMC
247.0k
26%74%
688.0k20%
Logistics & power projection
OurAirports
270
82%18%
5820%

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.

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