Iran, the Strait of Hormuz, and the Architecture of Global Energy Dependence

Strait of Hormuz oil chokepoint geopolitics 2026

The Strait of Hormuz has long occupied a peculiar position in the geopolitical imagination — known to every student of international relations as the world's most critical energy chokepoint, yet rarely experiencing the disruption that its theoretical vulnerability suggests. The US-Israeli campaign against Iran that began on February 28, 2026 has ended that comfortable asymmetry between structural importance and practical stability.

The strait's geography makes its vulnerabilities strikingly clear on any map: a passage roughly 33 kilometres wide at its narrowest point, flanked on the north by Iran and on the south by Oman and the UAE, through which flows approximately 20 percent of global oil and 15 percent of LNG at any given moment. For decades, the implicit assumption underlying global energy markets was that Iran — however hostile to the United States and Israel in its rhetoric — would never actually close the strait, because doing so would simultaneously destroy its own oil export revenue and invite the kind of overwhelming military response that would threaten the regime's survival.

That calculus has now changed. Iran is already under military attack.

Its oil export capacity is already degraded. The threat of further strikes against infrastructure it values — power plants, refineries — has clearly been made.

In this context, restricting access to the strait costs Iran proportionately less and signals proportionately more than at any previous point in its history. What the crisis has revealed is not merely a tactical energy disruption but a structural vulnerability in the architecture of globalised commodity markets: decades of optimisation for efficiency rather than resilience have produced supply chains that are extraordinarily productive in normal conditions and extraordinarily fragile when those conditions change.