The world woke on Sunday to a threat that could reshape global energy markets for years. At 11:44 PM GMT on Saturday, March 22, Donald Trump posted on Truth Social in his signature all-caps register: if Iran did not fully open the Strait of Hormuz within 48 hours, the United States would begin destroying Iranian power plants, starting with the largest one first. The clock, as of Monday evening, expires.
The ultimatum marks the fourth week of a war that began when the United States and Israel struck Iran on February 28, triggering the killing of Supreme Leader Ali Khamenei and a swift Iranian counterstrike that included the closure of the Strait of Hormuz, the narrow chokepoint through which roughly one-fifth of the world’s oil normally flows. Since then, tanker traffic has fallen to almost nothing. Brent crude crossed $100 a barrel for the first time in four years and climbed as high as $126. The global economy has been holding its breath.
Iran’s response to Trump’s ultimatum was swift and unyielding. Iranian President Masoud Pezeshkian dismissed the threat on X, calling it evidence of American desperation and saying the strait remains open to all nations except those that have violated Iranian soil. More pointed was the statement from Iran’s armed forces headquarters, which warned that if Iran’s fuel and energy infrastructure is struck, all energy, information technology, and desalination facilities belonging to the United States and its allies in the region will be targeted. Iran also issued its most explicit statement yet: the strait could be closed permanently if the US acts.
The escalation is particularly striking because just 24 hours before the ultimatum, Trump had floated the possibility of winding down the conflict without resolving the Hormuz question. That tentative off-ramp vanished Saturday night. National Security Advisor Mike Waltz confirmed on Sunday morning television that the president would follow through, beginning with Iran’s largest power plant. The reversal speaks to the pressure Trump faces domestically: average US petrol prices have risen by over a dollar a gallon in a matter of weeks, and corporate America has set its own informal deadline of roughly two weeks before oil prices reprice sharply enough to trigger a global recession.
For the world, the stakes are almost impossible to overstate. The Strait of Hormuz handles around 20 million barrels of oil per day. No viable alternative route exists at scale. The East-West pipeline and the UAE’s Abu Dhabi bypass pipeline together can redirect only a fraction of normal volumes. Qatar’s LNG facilities, which supply a significant portion of European and Asian gas, were struck by Iranian drones earlier in the crisis, with some analysts estimating years of repair work ahead. Spanish Prime Minister Pedro Sanchez warned on Sunday of a global energy crisis. British Prime Minister Keir Starmer convened emergency economic meetings.
Few countries feel this more acutely than India. The world’s third-largest crude oil importer, India sources roughly half its crude supply through the Strait of Hormuz and imports nearly 60 percent of its LPG from Gulf suppliers. That cooking gas dependence translates directly into household pressure across hundreds of millions of Indian homes. India’s LNG exposure adds another layer, with Qatar and the UAE accounting for over half of Indian LNG imports. Analysts at MUFG have warned that a sustained blockade and elevated oil prices could push the dollar-rupee rate above 95, a level that would ripple through inflation, fiscal deficits, and consumer spending. The government has set up a 24/7 energy monitoring centre, issued a Natural Gas Control Order, and activated its strategic petroleum reserves, which cover approximately 50 days of demand. It is breathing room, not a solution.
India’s diplomatic posture has been a careful balancing act. New Delhi has intensified contacts with Tehran, and Iranian authorities signalled they were considering allowing Indian vessels safe passage as a goodwill gesture. Several Indian-flagged ships have transited the Iranian-controlled corridor in recent weeks. India is, in effect, negotiating its own quiet lane through a war it did not choose and cannot escape.
The 48-hour clock does not only set a military ultimatum. It sets a test for the architecture of global order. If Trump strikes and Iran retaliates against Gulf energy infrastructure, desalination plants, and US bases, the region faces a scenario that energy markets have no playbook for. If Trump does not follow through, American credibility as a coercive force takes a measurable hit. Neither outcome is clean.
What is clear is that 56 kilometres of water between Oman and Iran has become the most consequential piece of geography on earth. The question of who controls it, and on what terms, will define energy security, inflation trajectories, and geopolitical alignments well beyond whatever happens on Monday night. For India and the rest of the world, the only certainty is that the cost of getting this wrong is far higher than anyone budgeted for.
