Chile holds a 58–42 advantage over Peru on the Relative Advantage Index.
The margin is driven by military spending (67% of the combined total, $5.3bn) and economic size (GDP) (53% of the combined total, $330bn). Peru 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1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Chile | Share | Peru | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $5.3bn | 67%33% | $2.6bn | 33% |
Economic size (GDP) World Bank WDI | $330bn | 53%47% | $289bn | 27% |
Active personnel COW NMC | 69.0k | 46%54% | 81.0k | 20% |
Logistics & power projection OurAirports | 72 | 60%40% | 48 | 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.