CONFLICTIQ
HEAD TO HEAD

Japan vs Vietnam

Japan
77%
RAI
Vietnam
23%

Verdict

Japan holds a 77–23 advantage over Vietnam on the Relative Advantage Index, a decisive margin.

The margin is driven by military spending (86% of the combined total, $62.2bn) and economic size (GDP) (89% of the combined total, $4.0tn). Vietnam leads on active personnel.

1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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

FactorJapanShareVietnamWeight
Military spending
SIPRI Milex
$62.2bn
86%14%
$10.5bn33%
Economic size (GDP)
World Bank WDI
$4.0tn
89%11%
$476bn27%
Active personnel
COW NMC
247.0k
34%66%
482.0k20%
Logistics & power projection
OurAirports
270
88%12%
3820%

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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