Oman holds a 68–32 advantage over Yemen on the Relative Advantage Index, a clear margin.
The margin is driven by military spending (78% of the combined total, $6.0bn) and economic size (GDP) (83% of the combined total, $107bn). Yemen 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1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Oman | Share | Yemen | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $6.0bn | 78%22% | $1.7bn | 33% |
Economic size (GDP) World Bank WDI | $107bn | 83%17% | $21.6bn | 27% |
Active personnel COW NMC | 43.0k | 52%48% | 40.0k | 20% |
Logistics & power projection OurAirports | 13 | 48%52% | 14 | 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.