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U.S. Lifts Naval Blockade as Implementation of Iran Peace Memorandum Begins

The Strait of Hormuz has reopened for oil transit as both nations enter a 60-day negotiation window under the Islamabad Memorandum of Understanding.

June 18, 2026 at 11:30 PM

The United States and Iran have moved into the implementation phase of the 'Islamabad Memorandum of Understanding,' marked by the reopening of the Strait of Hormuz and the lifting of the U.S. naval blockade on Iranian ports. Vice President JD Vance confirmed that approximately 12.5 million barrels of oil transited the Strait overnight, signaling an immediate easing of global energy pressures. The agreement, facilitated by Pakistan with quiet diplomatic support from Qatar and Oman, establishes a 60-day technical negotiation period to finalize arrangements regarding Iran’s nuclear program and the phased suspension of U.S. and UN sanctions. Despite the cessation of active hostilities, the Trump administration has maintained a posture of 'maximum pressure.' Defense Secretary Pete Hegseth warned on June 18 that the U.S. is prepared to reimpose an 'ironclad blockade' and resume military operations should Tehran violate the terms of the MOU. Observers note that the current agreement maintains the nuclear status quo during negotiations but notably excludes provisions regarding Iran’s regional proxies. This omission is underscored by continued Israeli military action against Hezbollah targets in southern Lebanon over the last 24 hours.

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