CONFLICTIQ
HEAD TO HEAD

Indonesia vs Japan

Indonesia
34%
RAI
Japan
66%

Verdict

Japan holds a 66–34 advantage over Indonesia on the Relative Advantage Index, a clear margin.

The margin is driven by military spending (81% of the combined total, $62.2bn) and economic size (GDP) (74% of the combined total, $4.0tn). Indonesia 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1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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

FactorIndonesiaShareJapanWeight
Military spending
SIPRI Milex
$15.0bn
19%81%
$62.2bn33%
Economic size (GDP)
World Bank WDI
$1.4tn
26%74%
$4.0tn27%
Active personnel
COW NMC
396.0k
62%38%
247.0k20%
Logistics & power projection
OurAirports
198
42%58%
27020%

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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