US and Iran Reach Preliminary Peace Deal to End War and Reopen Strait of Hormuz

After nearly four months of a conflict that disrupted global trade and energy markets, the United States and Iran have reached a preliminary peace agreement. President Donald Trump and Iranian parliamentary speaker Mohammad Bagher Ghalibaf electronically signed a memorandum of understanding on Sunday, establishing a 60-day ceasefire. The breakthrough aims to halt all military operations across multiple fronts and sets the stage for a formal signing ceremony in Geneva, Switzerland, on Friday.[1][6]

The core of the interim deal focuses on immediately de-escalating the most economically damaging aspects of the war. Under the framework, the United States will lift its naval blockade on Iranian ports, a measure imposed in April following the outbreak of hostilities. In exchange, Iran has agreed to reopen the Strait of Hormuz, a critical maritime chokepoint that handles roughly one-fifth of the world's oil supply.[2][5]

The conflict, which began in late February 2026 with a massive US and Israeli military offensive dubbed Operation Epic Fury, had sent shockwaves through the global economy. The initial strikes resulted in the death of Iran's Supreme Leader Ayatollah Ali Khamenei and triggered a protracted exchange of missile and drone attacks across the Middle East. As the war escalated, the closure of the Strait of Hormuz subsequently stranded commercial vessels, disrupted international supply chains, and drove up energy prices worldwide, creating a sense of urgency among global leaders to find a diplomatic off-ramp.[3][4]

Financial markets reacted instantly to the news of the ceasefire. Global crude oil prices tumbled by nearly 5% on Monday, with West Texas Intermediate (WTI) crude dropping to roughly $81 per barrel and Brent crude falling to $83. Meanwhile, US equity markets surged, with the Dow Jones Industrial Average hitting a new record high as investors cheered the prospect of stabilized supply chains and reduced geopolitical risk. Analysts noted that while the immediate threat of a wider regional war had subsided, the long-term economic recovery would depend heavily on the successful implementation of the maritime agreements.[5][8]

Despite the market optimism, the exact terms of the 14-point memorandum remain unpublished, leading to sharply contested narratives between Washington and Tehran. President Trump took to social media to declare that the Strait of Hormuz would be 'completely open' and 'toll-free' for unrestricted shipping in both directions. However, Iranian state media and officials have insisted that the waterway will be managed under 'Iranian arrangements,' explicitly stating their intention to charge what they describe as 'maritime service fees' rather than tolls, setting up an immediate diplomatic clash over the freedom of navigation.[3][4]

This discrepancy over transit fees has already caused friction among US allies and international stakeholders. Speaking ahead of the G7 summit in France, French President Emmanuel Macron emphasized that the international community would 'do everything in our power to ensure there is no toll.' Commercial shipping companies have also expressed caution, noting that a political agreement must translate into secure, verifiable conditions on the water before major fleets resume normal operations, as insurers remain wary of the lingering risks in the Persian Gulf.[3][8]

The most complex issue—Iran's nuclear program—has been largely deferred to the upcoming 60-day negotiation window. President Trump claimed on Monday that Iran has 'agreed to never have a Nuclear Weapon' and suggested that nuclear material would be 'unearthed' and removed by the US. Conversely, Iranian sources indicate that Tehran has only agreed to maintain the current nuclear status quo, halting further uranium enrichment while a final, comprehensive treaty is hammered out. International observers, including the UN nuclear watchdog, have floated proposals such as transferring enriched uranium to Kazakhstan to bridge the gap.[6][8]

Economic relief for Iran is another major flashpoint in the preliminary framework. Iranian state-linked outlets, including the Mehr News Agency, reported that the deal includes the suspension of US sanctions on Iranian oil and the phased release of up to $24 billion in frozen assets. US officials have pushed back on this characterization, insisting that any sanctions relief or unfreezing of funds will be strictly conditional. The administration maintains that economic benefits will be implemented only after Tehran demonstrates verifiable compliance with the agreement, ensuring the US retains leverage during the 60-day talks.[1][7]

The diplomatic breakthrough was heavily mediated by Pakistan, with Prime Minister Shehbaz Sharif confirming his country's role in brokering the talks and hosting the initial back-channel communications. Vice President JD Vance is expected to lead the US delegation at the formal signing ceremony in Geneva, representing the administration as the final details are codified. While the guns are falling silent between US and Iranian forces, the broader regional implications remain highly volatile, with neighboring countries watching closely to see how the shifting power dynamics will affect their own security.[1][6]

Notably, the ceasefire's impact on allied military operations is already being tested on the ground. While Iranian officials stated the truce applies to all fronts, including Lebanon, Israeli Defense Minister Israel Katz announced that the Israel Defense Forces will not withdraw from Lebanese territory seized during the conflict. As diplomats prepare for the Geneva summit, the next 60 days will determine whether this fragile memorandum can evolve into a lasting peace treaty or if the deliberate ambiguities embedded in the compromise will cause the entire framework to unravel.[3][5]