U.S. and Iran Sign Memorandum to End 110-Day War, but Lebanon Ceasefire Remains Fragile

The United States and Iran have signed a 14-point memorandum of understanding (MOU) to end their 110-day war, halting a conflict that has devastated the global energy market and claimed thousands of lives. Signed by U.S. President Donald Trump and Iranian President Masoud Pezeshkian at the Palace of Versailles, the framework immediately reopens the Strait of Hormuz and lifts the U.S. naval blockade of Iranian ports.[1][6]

The war, which began on February 28 with a massive campaign of U.S. and Israeli airstrikes targeting Iranian leadership and nuclear sites, quickly devolved into a punishing asymmetric conflict. Iran retaliated by mining the Strait of Hormuz, effectively choking off a vital artery for global oil and natural gas and triggering a worldwide energy crisis.[6]

The newly signed agreement establishes a 60-day negotiating window to finalize a comprehensive settlement regarding Iran's nuclear program and the lifting of international sanctions. In the interim, Washington has granted immediate waivers allowing Tehran to resume crude oil exports, a move that sent global energy prices tumbling.[1][5]

The core of the upcoming 60-day negotiation period will focus on Iran's nuclear capabilities. According to U.S. officials, Iran has agreed that its 440-kilogram stockpile of highly enriched uranium will, at a minimum, be down-blended on Iranian soil under the supervision of the International Atomic Energy Agency (IAEA).[1][6]

In exchange, Iran is seeking access to billions of dollars in frozen assets and a reported $300 billion postwar reconstruction fund. The MOU stipulates that full access to frozen funds is contingent upon the implementation of the final agreement, though the immediate oil waivers provide Tehran with a vital economic lifeline.[1][4]

However, the pact's durability is already being tested. The MOU explicitly calls for an immediate and permanent termination of military operations "on all fronts, including in Lebanon." This clause effectively requires Iran to rein in Hezbollah, while placing pressure on the U.S. to ensure Israeli compliance.[1][2]

Israel, which was not a party to the MOU, initially defied the ceasefire provision. Hours after the agreement was signed, the Israeli military launched deadly airstrikes in southern Lebanon, killing at least 18 people, while Hezbollah retaliated, resulting in the deaths of four Israeli soldiers.[3][4]

The flare-up in Lebanon prompted Iran to suspend technical talks scheduled to take place in Geneva, Switzerland, leading U.S. Vice President JD Vance to postpone his trip. Iranian Foreign Minister Abbas Araghchi stated that the U.S. has a "commitment and responsibility" to ensure the deal is upheld on all fronts.[2][4]

Following intense diplomatic pressure from the White House—with President Trump stating he personally asked Israel to stand down—Israel and Hezbollah agreed to renew their ceasefire on Friday. The truce was mediated by Qatar, the U.S., and Iran, temporarily saving the broader agreement from collapse.[3][4]

The deal has drawn sharp criticism from Israeli leadership and U.S. Democrats. Israeli officials feel sidelined and fear the 60-day pause allows Iran to preserve its nuclear infrastructure rather than dismantling it. Meanwhile, critics of the Trump administration argue the 1.5-page MOU front-loads economic relief without securing the ironclad, verified benchmarks seen in the 160-page 2015 Joint Comprehensive Plan of Action (JCPOA).[5][6]

Conversely, the White House and its allies have championed the agreement as a historic diplomatic breakthrough achieved through American strength. Supporters emphasize that the deal successfully reopens the critical Strait of Hormuz and secures a written commitment from Iran to never acquire a nuclear weapon.[7]

As the 60-day clock ticks down, the Middle East remains in a precarious interregnum. With either side able to walk away at any time, the success of the Versailles agreement hinges on whether technical negotiators in Geneva can bridge decades of mistrust, and whether the fragile truce in Lebanon can hold while maritime authorities work to clear the 500-vessel backlog in the Strait of Hormuz.[1][6]