On Saturday, the Iranian Revolutionary Guard dismissed a 48-hour ultimatum issued by President Donald Trump demanding the full reopening of the Hormuz Strait. The Guard not only rejected the demand but also threatened to retaliate against U.S. and Israeli energy and desalination facilities if their own installations were targeted.
Trump shared the ultimatum on his social media platform, Truth Social, on March 21, 2026, amid the ongoing conflict involving the United States, Israel, and Iran, which began on February 28 with 'Operation Epic Fury.' Trump gave Iran two days to entirely reopen the strait without posing any threats. "If Iran does not fully and unconditionally open the Strait of Hormuz within 48 hours from this very moment, the United States will strike and dismantle their various power facilities, starting with the largest!" the president declared.
The Iranian regime, now led by Mojtaba Khamenei, the son of the late Supreme Leader Ali Khamenei who died on March 1 during initial bombings, stated through its representative to the International Maritime Organization that the strait remains open to global navigation except for vessels from the U.S. and Israel. The Revolutionary Guard warned that any attack on their facilities would provoke immediate retaliation.
International Response to the Tensions
On the day of Trump's ultimatum, 22 nations led by the United Arab Emirates and backed by the United Kingdom, France, Germany, Japan, Canada, and Australia, demanded the immediate reopening of the strait. Their joint statement condemned Iran's attacks on unarmed commercial ships, mine placements, and drone and missile strikes. "We urge Iran to immediately halt its threats, mine placements, drone and missile attacks, and any attempts to obstruct commercial navigation," the statement read.
The coalition of 22 countries also urged Iran to comply with United Nations Security Council Resolution 2817 and to declare an immediate moratorium on attacks against civilian infrastructure.
Economic Impact and Escalating Tensions
The partial blockade of the Hormuz Strait, a critical channel for roughly one-third of the world's oil trade, has caused crude prices to soar by more than 40% since the conflict began, with Brent crude surpassing $118 a barrel. Iran had threatened to block oil shipments to the U.S. and Israel from the early stages of the conflict. Additionally, Iran launched missiles at Ras Laffan, Qatar, home to the world's largest natural gas export facility. The International Energy Agency authorized a coordinated release of strategic oil reserves to ease the impact.
Trump described the reopening of the strait as "a very straightforward military maneuver" and criticized NATO as "cowardly" for not participating in the conflict, which had exceeded 21 days of fighting at the time of the ultimatum. The Department of War reported that the attacks have significantly weakened Iran's military capabilities. Meanwhile, Saudi Arabia reported intercepting Iranian drones and missiles targeting its eastern region and Riyadh without any damage.
The ultimatum is set to expire on Monday, March 23, with no signs of resolution in the conflict. While Trump has ruled out deploying ground troops, he continues to maintain aerial pressure on Iran.
Key Questions on the Hormuz Strait Conflict
What are the implications of the Hormuz Strait blockade?
The blockade has led to a significant increase in global oil prices, affecting the global economy due to the key role the strait plays in the world's oil trade.
How has the international community responded to the conflict?
A coalition of 22 countries has called for the immediate reopening of the strait and condemned Iran's aggressive actions, urging compliance with international resolutions.
What actions has the U.S. threatened if Iran does not comply with the ultimatum?
President Trump has threatened to target and destroy Iranian power facilities if the strait is not reopened within the given timeframe.