CONFLICTIQ
HEAD TO HEAD

Australia vs Japan

Australia
33%
RAI
Japan
67%

Verdict

Japan holds a 67–33 advantage over Australia on the Relative Advantage Index, a clear margin.

The margin is driven by military spending (64% of the combined total, $62.2bn) and economic size (GDP) (70% of the combined total, $4.0tn).

1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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

FactorAustraliaShareJapanWeight
Military spending
SIPRI Milex
$35.3bn
36%64%
$62.2bn33%
Economic size (GDP)
World Bank WDI
$1.8tn
30%70%
$4.0tn27%
Active personnel
COW NMC
60.0k
20%80%
247.0k20%
Logistics & power projection
OurAirports
213
44%56%
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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