U.S. and Iran Sign Memorandum of Understanding to End 110-Day War

The signing of the 14-point Memorandum of Understanding (MoU) between U.S. President Donald Trump and Iranian President Masoud Pezeshkian marks the official end to a devastating 110-day conflict. The agreement, signed electronically and confirmed by officials on Wednesday, mandates an immediate and permanent termination of military operations across all fronts.[1][5][8]

At the center of the immediate relief is the unblocking of global energy arteries. President Trump authorized the immediate removal of the U.S. naval blockade on Iranian ports, a measure initially imposed in retaliation for Tehran's grip on the vital waterway. In exchange, Iran has committed to restoring full, toll-free commercial traffic through the Strait of Hormuz within 30 days.[5][6]

The economic stakes of the blockade had reached a critical threshold. According to the International Energy Agency, the conflict triggered a massive drawdown of 163 million barrels from the strategic reserves of wealthy OECD nations, pushing global oil stocks to their lowest levels since 1990. The Trump administration argued that failing to secure the strait's reopening would have plunged the global economy into a severe depression.[5][8]

Beyond the immediate ceasefire, the MoU establishes a fragile 60-day window to negotiate a comprehensive final agreement regarding Iran's nuclear ambitions. As a preliminary concession, Tehran agreed to discuss down-blending its 440-kilogram stockpile of highly enriched uranium, which currently sits at a purity level that could be further enriched for weaponization.[2][5]

In return for these nuclear and maritime concessions, the United States has offered a sweeping package of financial incentives. The agreement outlines the unfreezing of billions of dollars in Iranian assets and the issuance of waivers allowing Iranian crude oil to be shipped abroad. Additionally, the framework floats a potential $300 billion reconstruction fund for Iran, financed by regional Gulf partners, though U.S. officials stressed that these payouts remain strictly conditional on Iran's compliance.[3][5]

One of the most significant and contentious clauses of the MoU extends the ceasefire to Lebanon. The agreement explicitly requires Iran to rein in its proxy, Hezbollah, effectively halting the northern front of the broader regional conflict. While the U.S. maintains that Israel retains the right to defend itself if attacked, the clause is designed to freeze the current battle lines and prevent further Israeli incursions into Lebanese territory.[5][7]

The inclusion of Lebanon has triggered intense anxiety in Israel and among Republican hardliners in Washington. Critics argue that the deal grants Hezbollah a crucial reprieve and fails to permanently dismantle Iran's nuclear infrastructure, allowing Tehran to retain large quantities of lower-enriched uranium. The diplomatic rift has even spilled into public view, with President Trump openly criticizing Israeli Prime Minister Benjamin Netanyahu's judgment as the U.S. finalized the accord.[4][7][8]

Friction is also visible within Iran's own political establishment. While the MoU stipulates toll-free passage through the Strait of Hormuz for 60 days, Iran's conservative parliament speaker, Mohammad Bagher Ghalibaf, publicly declared that the waterway will not return to prewar conditions. Ghalibaf insisted that Iran retains sovereignty over the strait and plans to charge commercial vessels a fee for services once the 60-day grace period expires, setting the stage for future maritime disputes.[3][5]

The Gulf states, which did not advocate for the initial military confrontation, are now left to navigate a shifted regional balance of power. Under the terms of the MoU, U.S. forces are scheduled to withdraw from areas immediately surrounding Iran within thirty days of a final, comprehensive agreement. This planned drawdown leaves regional partners wary of a security vacuum, even as they are expected to bankroll Tehran's reconstruction.[5][7]

Ultimately, the durability of the peace remains highly precarious. Senior U.S. officials have acknowledged that the 60-day negotiating window is fragile and that either side can walk away at any time. If the talks collapse, the Trump administration has signaled its readiness to reimpose crushing economic pressure, leaving the global economy and the Middle East suspended in a tense diplomatic holding pattern.[2][5]