Has Yemen returned to ‘full-scale war’?

The key market risk is loss of route redundancy: if Hormuz disruption coincides with sustained danger at Bab al-Mandeb, the marginal barrel and container route become more expensive even before physical flows stop. That can lift crude risk premia, war-risk insurance and freight rates disproportionately to the volume actually diverted. Saudi export reliance on the Red Sea raises the potential supply shock, while longer diversions and higher fuel costs pressure airlines, import-dependent manufacturers and consumer-facing businesses. Some tanker operators could benefit from longer voyages and tighter vessel availability, but only if cargoes continue moving; a shutdown can overwhelm that benefit.

Near term (days), expect headline-driven volatility in oil and shipping, with confirmation needed from AIS transit data, port activity and insurance quotes. Over 1–3 months, sustained disruption would broaden the premium into freight and delivered-energy costs; a mediation breakthrough or restored safe passage could unwind it quickly. Over 6–18 months, repeated chokepoint risk may encourage inventory buffers and alternative routing, but is not automatically a durable earnings uplift for shippers.

Contrarian point: the largest risk is not another isolated strike but simultaneous impairment of both major Gulf export routes. Conversely, reported territorial gains and official strike counts are not reliable proxies for secure commercial passage. Avoid treating battlefield claims as proof of a lasting supply interruption.