The Trump administration notified mediators on Wednesday that it will not return to the June memorandum of understanding with Iran, effectively ending a diplomatic framework aimed at reopening the Strait of Hormuz and restarting nuclear talks. The preliminary deal, signed at the Palace of Versailles and negotiated by Vice President JD Vance, had collapsed within weeks after Iran resumed attacks on commercial vessels to assert control over the waterway.
U.S. policy has since shifted toward 'maximum economic pressure,' with the administration abandoning the MOU amid domestic criticism that it was overly conciliatory toward Tehran. Recent diplomatic outreach by regional mediators has yielded no progress. Pakistan’s Army Chief Asim Munir traveled to Tehran for shuttle diplomacy but returned without tangible results. Oman’s foreign minister sought to finalize a transit-lane agreement as a precursor to broader negotiations, but Iran demanded changes to gain greater oversight of shipping traffic; Muscat did not confirm an accord, and Iranian officials provided conflicting statements. Qatar’s Prime Minister Sheikh Mohammed bin Abdulrahman al-Thani met Iran’s foreign minister in Tehran, issuing a joint statement on de-escalation and preparatory talks without announcing a breakthrough.
On August 25, the U.S. launched 'Operation Economic Outcast,' sanctioning nearly 60 entities and expanding secondary sanctions to five sectors: digital assets, technology, gold, aviation, and shipping. Brig. Gen. Hossein Mohebbi, an IRGC spokesman, reiterated Iran’s position on Wednesday, stating that the U.S. must accept Tehran’s conditions to reopen the strait. 'If the United States stops obstructing and returns to the memorandum of understanding, we can open the Strait of Hormuz within the framework of the agreement reached,' he said via Iranian state television.
Shipping traffic through the strait remains subdued. Kpler data showed 10 visible commodity vessel transits on Wednesday, up from 8 on Tuesday but well below the 10-day moving average of roughly 15 vessels. On Thursday, a tanker was struck by an unknown projectile, causing a fire that was later extinguished, according to the UK Maritime Trade Operations agency. The incident occurred as Brent crude oil prices climbed above $88 a barrel following reports of the MOU’s collapse.
The administration’s stance has drawn criticism from analysts. Umer Karim, a researcher at the University of Birmingham, described the MOU as 'essentially dead in all aspects,' adding that mediators now face a far more difficult task in brokering compromise. The six-month anniversary of the strikes on Iran falls on August 28, underscoring the persistent tensions that continue to elevate geopolitical risk premiums in energy markets.
