President Donald Trump and Iranian President Masoud Pezeshkian have signed a memorandum of understanding (MoU) aimed at ending hostilities between the United States and Iran. According to U.S. and Iranian officials, the agreement took effect immediately after both leaders signed the document electronically.
The MoU opens a 60-day negotiation period during which both sides will work on unresolved issues, including Iran’s nuclear program and U.S. sanctions. Iranian officials said the agreement provides a framework for future talks rather than a final settlement.
Under the published text, Iran reaffirmed that it will not acquire or develop nuclear weapons. The agreement also includes plans for the dilution of Iran’s enriched uranium under the supervision of the International Atomic Energy Agency (IAEA).
Trump confirmed that he personally signed the memorandum while abroad, while Pezeshkian signed the document in Tehran. Iranian state media published images showing Pezeshkian holding the signed agreement. A formal in-person signing ceremony is still expected in Switzerland on June 19.
The deal is also linked to efforts to reopen the Strait of Hormuz and reduce tensions in the region. If implemented successfully, the agreement could lead to sanctions relief for Iran, allowing it to increase oil exports and potentially regain access to tens of billions of dollars in frozen assets, along with possible financing support worth up to $300 billion.
The agreement has already sparked political debate in Washington. Some conservative Republicans criticized Vice President JD Vance, accusing him of negotiating away military gains achieved by the Trump administration. Trump publicly backed the deal, saying he would take credit if it succeeds, while joking that Vance would be blamed if it fails.
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