A fragile two-week ceasefire between the United States and Iran has been pushed to the edge of total collapse, after Tehran announced it would reimpose strict travel restrictions on the Strait of Hormuz on Saturday, reversing a one-day opening of the critical global waterway. The reversal came in direct response to Washington’s refusal to lift its ongoing naval blockade of Iranian ports and vessels, which Iranian officials say violates the core terms of the temporary truce set to expire this Wednesday.
The Strait of Hormuz, the strategic chokepoint through which roughly 20 percent of the world’s total oil supplies transits each year, has been Iran’s most impactful leverage against Western commercial and political interests since the United States and Israel launched their joint military campaign against Iran in February. Keeping the waterway open to unimpeded commercial traffic was the central pillar of the ceasefire agreement that took effect two weeks prior.
The cascade of escalating tensions began days earlier, when Iran declared the strait “fully open” for navigation on Friday, a reciprocal gesture following a newly announced ceasefire between Israel and Lebanese armed groups. That bilateral truce has already crumbled amid repeated violations by Israeli forces, which have continued shelling residential areas in southern Lebanon and demolishing civilian homes even as displaced families attempt to return to their communities.
Iranian officials justified their decision to reinstate transit restrictions by pointing to the Trump administration’s failure to uphold its end of the ceasefire deal. Since Washington launched its naval blockade of Iranian shipping over the prior weekend, US Central Command confirmed via a social media post Saturday that American military forces have already turned away at least 23 commercial vessels near the strait since the blockade went into effect on April 13.
Contradicting Iranian accounts of the agreement, US President Donald Trump claimed Friday that Iran had agreed to reopen the strait with no preconditions, while insisting that the American blockade would “remain in full force” until a broader permanent deal is reached to curb Iran’s nuclear program. Iranian Deputy Foreign Minister Saeed Khatibzadeh pushed back on that characterization hours later during a public panel Saturday, stating bluntly, “That is not the term we agreed on.”
Shortly after Khatibzadeh’s remarks, Iran’s military headquarters released an official formal statement confirming the new transit restrictions. “The Islamic Republic of Iran, following previous agreements met in the negotiations conducted in good faith, agreed to manage the passage of a limited number of oil and commercial ships through the Strait of Hormuz,” the statement read. “Unfortunately, the Americans, with their repeated breaches of trust that are part of their history, continue their acts of piracy and maritime theft under the pretext of a so-called blockade. This strategic waterway is under strict management and control by the armed forces. As long as the United States does not end [its blockade] and allow complete freedom of movement for vessels from Iran to their destinations and back, the situation in the Strait of Hormuz will remain under strict control and will remain as it was before.”
Hours after the announcement, gunboats operated by Iran’s Islamic Revolutionary Guard Corps (IRGC) opened fire on an oil transiting the strait, though no injuries were reported in the incident. Al Jazeera correspondent Ali Hashem summed up the diplomatic fallout, noting that talks between Washington and Tehran have been brought “back to square one.”
With less than three days remaining before the ceasefire is set to expire, the gap between the two sides appears nearly unbridgeable. Trump continues to demand that Iran allow the US to remove all of its domestically produced enriched uranium, a demand Iranian leaders have repeatedly labeled a non-starter that violates national sovereignty.
The human cost of the ongoing conflict has already been staggering. According to the US-based Human Rights Activist News Agency, more than 1,700 Iranian civilians have been killed in US and Israeli strikes since the war began. The United Nations Refugee Agency estimates that over 3 million Iranians have been displaced from their homes since the start of military operations.
Trump has already signaled he has no intention of extending the truce if a deal is not reached by Wednesday’s deadline. “The blockade is going to remain. If an agreement is not reached by Wednesday, unfortunately, we’ll have to start dropping bombs again,” he said Friday. Responding to Iran’s decision to reclose the strait, Trump added that Iran “got a little cute” with the move, but insisted “Iran can’t blackmail us.”
Despite Trump’s tough rhetoric, closing the Strait of Hormuz has proven to be one of Iran’s most effective tools of pressure against the US. The disruption to global oil supplies has already pushed US gasoline prices above $4 per gallon, sending inflationary ripples across the entire Western economy. The rising energy costs have further dragged down Trump’s already weak approval ratings just months before the US midterm congressional elections.
Military analysts note that the asymmetric leverage gives Iran a distinct upper hand in the standoff. Jennifer Parker, an adjunct fellow in naval studies at the University of New South Wales, explained that the US blockade cannot inflict the same level of economic damage on Iran that Iran can inflict on global markets through closing the strait. “It is not the US blockade on Iranian ports that is impacting the majority of shipping going through that strait. It is the attacks the Iranian navy and IRGC have undertaken on civilian ships,” she told Al Jazeera. “To solve the problem in the Strait of Hormuz, there either needs to be an agreement for Iran to stop attacking vessels, or a forcible military intervention that stops them from attacking vessels, and then general reassurance across the strait that it is clear of mines and that if the IRGC start trying to attack merchant ships, they will be defended…. We are a long way from all of that.”
For many Iranian observers, the Trump administration’s inconsistent statements and refusal to abide by ceasefire terms have convinced Tehran that Washington can never be a reliable negotiating partner. Mostafa Khoshcheshm, an Iranian political science professor, noted that Trump’s erratic behavior has erased any remaining trust between the two sides. “Trump’s contradictory statements surrounding the ceasefire have convinced Tehran that the United States is not a trustworthy partner for any kind of deal,” he said. “As Trump continues to behave erratically, Iran will continue the war. Iran believes it has the upper hand and that this must be established in any future confrontation.”