Thailand holds a 66–34 advantage over Myanmar on the Relative Advantage Index, a clear margin.
The margin is driven by economic size (GDP) (88% of the combined total, $527bn) and military spending (54% of the combined total, $6.0bn).
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Myanmar | Share | Thailand | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $5.0bn | 46%54% | $6.0bn | 33% |
Economic size (GDP) World Bank WDI | $74.1bn | 12%88% | $527bn | 27% |
Active personnel COW NMC | 356.0k | 50%50% | 361.0k | 20% |
Logistics & power projection OurAirports | 25 | 28%72% | 64 | 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.