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U.S. and Iran Reach Formal Memorandum to End Hostilities and Reopen Strait

President Trump announces a memorandum of understanding with Tehran as energy markets react to the planned reopening of the Strait of Hormuz.

June 16, 2026 at 5:00 AM

President Donald Trump announced today that a formal memorandum of understanding has been reached between the United States and Iran, marking a significant transition from a tentative ceasefire to a concrete diplomatic framework. The agreement focuses on the immediate reopening of the Strait of Hormuz, a critical global energy artery. While President Trump stated the passage is effectively open and traffic is increasing, Iranian Deputy Foreign Minister Kazem Gharibabadi clarified that Tehran intends to wait for a formal signing ceremony slated for Friday in Geneva before beginning full implementation. The accord establishes a 60-day timeline to address the most contentious aspects of the conflict, specifically Iran's stockpile of highly enriched uranium and its broader nuclear ambitions. While the U.S. administration considers this a pathway to permanent de-escalation, critics note the memorandum imposes few immediate obligations on Tehran regarding its nuclear assets. In tandem with the diplomatic track, French President Emmanuel Macron confirmed that a defensive international maritime mission, involving the U.K. and dozens of other nations, is being prepared to ensure freedom of navigation in the region. Economic relief serves as a primary pillar of the new framework, with reports suggesting the deal could eventually unlock $300 billion in reconstruction funds, the release of frozen Iranian assets, and broad sanctions relief. However, regional complexities remain, particularly regarding Israel's military operations in Lebanon. A senior U.S. official emphasized that an Israeli withdrawal from Lebanon is not a formal condition of the U.S.-Iran accord, as Washington seeks to insulate the maritime and nuclear negotiations from other active regional fronts.

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