CONFLICTIQ
HEAD TO HEAD

Japan vs Taiwan

Japan
76%
RAI
Taiwan
24%

Verdict

Japan holds a 76–24 advantage over Taiwan on the Relative Advantage Index, a decisive margin.

The margin is driven by military spending (77% of the combined total, $62.2bn) and logistics & power projection (91% of the combined total, 270).

2 factors — economic size (GDP), nuclear warheads — could not be scored because the figure is unpublished for at least one side.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

FactorJapanShareTaiwanWeight
Military spending
SIPRI Milex
$62.2bn
77%23%
$18.2bn45%
Active personnel
COW NMC
247.0k
59%41%
169.0k27%
Logistics & power projection
OurAirports
270
91%9%
2827%

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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