HEAD TO HEAD

South Korea vs Thailand

Verdict

South Korea holds a 70–30 advantage over Thailand on the Relative Advantage Index, a decisive margin.

The margin is driven by military spending (89% of the combined total, $47.8bn) and economic size (GDP) (78% of the combined total, $1.9tn). Thailand leads on logistics & power projection.

1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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

FactorSouth KoreaShareThailandWeight
Military spending
SIPRI Milex
$47.8bn
89%11%
$6.0bn33%
Economic size (GDP)
World Bank WDI
$1.9tn
78%22%
$527bn27%
Active personnel
COW NMC
555.0k
61%39%
361.0k20%
Logistics & power projection
OurAirports
38
37%63%
6420%

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.

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