US and Iran Reach Preliminary Peace Deal to Reopen Strait of Hormuz, but Israeli Operations in Lebanon Threaten Ceasefire

The United States and Iran have reached a preliminary memorandum of understanding to end a devastating three-month war, establishing a 60-day ceasefire and paving the way for the reopening of the Strait of Hormuz. The breakthrough, announced by President Donald Trump over the weekend, aims to lift a U.S. naval blockade and halt hostilities that have severely disrupted global trade. A formal signing ceremony is scheduled for Friday in Geneva, Switzerland, with U.S. Vice President JD Vance and Iranian negotiator Mohammad-Bagher Ghalibaf expected to attend.[1][3]

The immediate economic impact was profound. Brent crude, the international oil benchmark, tumbled more than 4% to roughly $82 a barrel following the announcement, down from a wartime peak of $126. The closure of the Strait of Hormuz in early March had effectively erased 20 million barrels of oil a day from the global market—roughly a fifth of the world's supply—triggering what the International Energy Agency characterized as a historic energy security crisis.[3][5][7]

"The deal with the Islamic Republic of Iran is now complete," Trump posted on his Truth Social platform. "Ships of the world, start your engines. Let the oil flow!" The president framed the agreement as a diplomatic triumph that averts a global recession and prevents Iran from obtaining a nuclear weapon, though the text of the memorandum remains largely classified.[1][3]

However, the fragile framework is already threatening to unravel over parallel conflicts in the region. Iranian Foreign Minister Abbas Araghchi warned Tuesday that the ceasefire applies to all fronts, explicitly stating that any continued Israeli military presence or airstrikes in southern Lebanon would constitute a direct violation of the U.S.-Iran agreement.[4][6]

Israeli officials swiftly rejected Tehran's ultimatum. National Security Minister Itamar Ben-Gvir declared that "Trump's agreement does not bind us," insisting that Israeli forces will not withdraw from Lebanese territory until Hezbollah's military infrastructure is completely dismantled. The Israeli military underscored this stance by launching fresh drone and airstrikes on several towns in southern Lebanon on Wednesday.[1][4]

The defiance has exposed a widening rift between Washington and Jerusalem. Speaking at the G7 summit in Évian-les-Bains, France, Trump publicly criticized Israeli Prime Minister Benjamin Netanyahu's handling of the northern front. Trump described recent Israeli bombing campaigns in Beirut as "vicious" and urged Israel to behave "more responsibly," arguing that the parallel conflict is needlessly complicating the broader peace effort.[1][6]

Back in Washington, the preliminary deal is facing fierce bipartisan headwinds. Lawmakers have criticized the administration for keeping the exact terms of the memorandum secret. Democratic Senator Richard Blumenthal called the framework a "surrender in effect," warning that it could unfreeze billions of dollars in Iranian assets without imposing permanent, verifiable destruction of Tehran's highly enriched uranium stockpiles.[2]

Critics also point to reports that the deal includes a $300 billion reconstruction investment fund, financed by Gulf states, designed to incentivize Iran to dismantle its nuclear program. Hardliners in both the U.S. and Israel argue that the agreement leaves the Iranian clerical regime intact and rewards its aggression, merely delaying a final reckoning over its nuclear ambitions.[1][2]

Even if the diplomatic hurdles are cleared, energy experts caution that consumers will not see immediate relief at the gas pump. The Strait of Hormuz has been heavily militarized, and clearing naval mines to ensure safe passage for commercial shipping could take weeks. Furthermore, securing maritime insurance and restarting shut-in oil production in countries like Iraq and Kuwait will require months of sustained stability before global supply chains fully normalize.[5]