Spain and Türkiye are close to evenly matched, 49–51 on the Relative Advantage Index.
Spain leads on military spending (57% of the combined total, $40.2bn) and economic size (GDP) (56% of the combined total, $1.7tn), which Türkiye offsets elsewhere.
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Spain | Share | Türkiye | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $40.2bn | 57%43% | $30.0bn | 33% |
Economic size (GDP) World Bank WDI | $1.7tn | 56%44% | $1.4tn | 27% |
Active personnel COW NMC | 124.0k | 26%74% | 355.0k | 20% |
Logistics & power projection OurAirports | 107 | 47%53% | 120 | 20% |
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.
Every combination inside the top 30 of the Composite Power Index.
Bordering states — the comparisons people actually search for.