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U.S. and Iran Activate Interim Peace Agreement; Maritime Blockade Lifted

The U.S. lifts its naval blockade as a 60-day technical negotiation period begins following the formal signing of the Versailles MOU.

June 18, 2026 at 11:00 PM

An interim diplomatic agreement between the United States and Iran has officially entered force following the June 17 signing of a Memorandum of Understanding (MOU) by President Donald Trump and Iranian President Masoud Pezeshkian. The agreement, facilitated by international mediators, established a 60-day window for technical negotiations regarding Iran’s nuclear program. As an immediate result, U.S. Central Command has lifted the naval blockade on Iranian ports, leading to the resumption of global oil flows through the Strait of Hormuz, with reports indicating over 12 million barrels moved in the first 24 hours. The terms of the MOU, which were submitted to Congress on June 18, reportedly include substantial economic sanctions relief and the establishment of a recovery fund. In exchange, Iran is expected to begin the dilution of its enriched uranium stocks. The deal also encompasses a broader regional de-escalation framework, including an end to military operations in Lebanon. However, Iranian officials have already signaled future friction by suggesting they will eventually charge transit fees for ships passing through the Strait of Hormuz once the interim period concludes. Despite the diplomatic progress, the Trump administration has maintained a posture of "maximum pressure" regarding enforcement. Defense Secretary Pete Hegseth stated that U.S. forces remain positioned to resume military operations and reimpose a total blockade should Tehran fail to adhere to its obligations. Meanwhile, Iran’s Supreme Leader characterized the U.S. move as a byproduct of desperation, even as both nations prepare for upcoming technical talks in Switzerland.

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