America’s campaign against Iran quickly shifted from a display of air power to a battle over energy flows. When President Trump issued a 48‑hour ultimatum to reopen the Strait of Hormuz, the strait had already become the war’s focal point, with oil and gas supplies throttled. The International Energy Agency called the conflict the greatest global energy‑security threat in history.

Renewables have outpaced any previous energy source, yet the world remains entrenched in legacy oil, gas and coal infrastructure. Investment in fossil fuels fell more than a third between 2015 and 2020, while clean‑energy capital roughly doubled, creating a “mid‑transition” where supply chains are thin and aging plants are under‑invested. This mismatch leaves power grids and fuel markets vulnerable to sudden shocks.

Price spikes from the Hormuz blockade are already curbing growth in Asia and parts of Africa, prompting fuel shortages and blackouts. Higher input costs threaten semiconductor output and could deflate the AI‑driven rally supporting the U.S. economy, while disrupted fertilizer shipments risk a food crisis as planting season approaches. The war demonstrates that the energy transition’s unfinished stage can amplify geopolitical risk.