The Gulf war's outcome teaches America's adversaries both vulnerability and opportunity. China's oil dependency faces severe strain as $80bn annually boosts Russia's revenue, while its Hormuz-bound 100-150 days of strategic reserves are insufficient. S&P 500 earnings face only a 2-5 per cent hit despite market volatility, highlighting US resilience. Adversaries observe America's asymmetric power: swift destruction of Iranian military assets contrasts with $9bn weekly costs and strained alliances. Yet, the war exposes US overreach, with Tomahawk missiles and Thaad interceptors depleted, and unpopular conflicts lacking bipartisan support. Iran's latent threat over Hormuz could force Gulf states to invest heavily in US air defenses, while Europe seeks alternatives to Qatari gas, finding the US a crucial swing supplier doubling LNG exports since 2020. China gains as US focus shifts from Asia, but its own container trade through Suez and Red Sea remains exposed to energy embargoes.

The lesson is stark: even amid chaos, adversaries rely on America more than ever.