The ongoing closure of the Strait of Hormuz, now in its fourth week amid escalating conflict between Iran, the US, and Israel, has triggered the largest oil supply disruption in history according to the International Energy Agency. Nearly 20 million barrels per day of crude and products—roughly 20% of global petroleum liquids—have been reduced to a trickle, forcing Gulf producers to slash output by over 10 million bpd. While the US receives only about 2.5% of its oil imports via this chokepoint, Asian economies face severe exposure: China accounts for 37.7% of all oil exports transiting the strait, with India, Japan, South Korea, and other Asian nations comprising the vast majority of destinations. Japan relies on the Middle East for 95% of its oil, much of it via Hormuz, and is drawing on strategic reserves while boosting alternative fuels; South Korea and Japan hold 7-8 months of reserves but are already feeling pressure. China possesses around four months of stockpiles but still faces risks given 57% of its tanker-delivered oil originates in the Middle East. This scenario echoes the 1973 oil embargo but is amplified by modern globalized supply chains, where panic, speculation, and interdependent trade could cascade into broader economic effects including higher commodity prices and industrial slowdowns. The crisis illuminates underreported patterns of geopolitical energy warfare: control of critical chokepoints serves as leverage in hybrid conflicts, with Iran threatening total closure in response to US strikes on energy infrastructure, while Russia and others potentially benefit from prolonged disruption. Unlike direct military escalation, sustained closure functions as economic attrition, disproportionately impacting US allies in Asia and highlighting supply chain vulnerabilities that few mainstream analyses connect to long-term macro shifts in global power. Official data confirms limited bypass options, with existing pipelines covering only a fraction of volumes, underscoring how interdependent energy trade transforms regional standoffs into global threats. As the conflict approaches potential resolution timelines of weeks, the outcome may determine whether this becomes a temporary shock or entrenched crisis.