Last Updated on 30 seconds ago by TodayWhy Editorial
The short version: Three months into the 2026 US-Iran war, negotiators from both sides have tentatively agreed on a 60-day memorandum of understanding to extend the ceasefire, reopen the Strait of Hormuz, and launch nuclear talks. It is the most significant diplomatic development since the conflict began in February. But as of June 7, 2026, President Trump has not signed off, Iran’s leadership has not formally confirmed, and fighting in the Persian Gulf continues. This article breaks down every term of the deal, who is mediating, what Iran is contesting, and why the next 72 hours may determine whether the war escalates or winds down.
1. How the US-Iran War Got Here: Key Timeline
The current conflict did not begin in a vacuum. Its roots trace to June 2025, when Israel launched what became known as the Twelve-Day War — striking Iranian military and nuclear facilities. The United States joined those strikes against Iran’s nuclear infrastructure. A ceasefire, mediated by the US and Qatar, held through the remainder of 2025.
That ceasefire collapsed on February 28, 2026, when the US and Israel launched a coordinated operation — “Operation Epic Fury” — against Iranian targets, with Netanyahu reportedly having lobbied Trump directly for a joint strike, citing Israeli intelligence as a decisive factor. Iran responded with strikes across the Gulf region, hitting Kuwait, Bahrain, and Iraq. The Strait of Hormuz — through which roughly 20% of global oil supply passes — was effectively shut down, sending energy markets into turmoil.
In April 2026, Pakistan brokered a two-week ceasefire that Trump extended indefinitely on April 21. Fighting never fully stopped: both sides continued limited strikes, the US Treasury continued imposing sanctions, and Iran carried out attacks on Kuwait’s international airport and targets in Bahrain. The US House passed a war powers resolution limiting Trump’s authority in a significant congressional rebuke.
To understand the military balance driving these decisions, see our full analysis: Why Is Israel Stronger Than Iran Militarily? A 2026 Full Comparison. For the US-Israel alliance that pulled Washington into this conflict in the first place: Why Does the US Support Israel? 7 Key Reasons Behind a 78-Year Alliance.
2. What Is an MOU and How Did Talks Get This Far?
A Memorandum of Understanding is not a peace treaty. In diplomatic terms, it is a framework agreement that establishes rules for a defined period and commits both parties to continue negotiating toward a comprehensive settlement. It is, in essence, an agreement to keep talking — with concrete commitments attached to make the talks credible.
The path to this MOU was not linear. Talks have been mediated primarily by Pakistan, with Qatar playing a supporting role. Pakistan’s involvement reflects its unusual position as a Muslim-majority nuclear-armed state with working relationships with both Washington and Tehran. In early April 2026, Pakistan proposed a 45-day two-phase ceasefire framework — Iran rejected it and countered with a 10-point plan. Multiple rounds of negotiations in Doha, Islamabad, and Washington nearly collapsed before progress was made.
The breakthrough came in late May. According to Axios, which first reported the MOU, negotiators reached agreement on text by approximately May 27-28, 2026. Pakistan’s Deputy Prime Minister and Foreign Minister Ishaq Dar traveled to Washington to meet Secretary of State Marco Rubio to finalize terms. As of June 7, the MOU has not been formally signed by either President Trump or Iran’s senior leadership. Iran’s semi-official Tasnim News Agency — closely linked to the Revolutionary Guards — stated that the MOU text “had not yet been finalized or confirmed.”
3. Full Breakdown: Every Term of the 60-Day MOU
Based on reporting from Axios, CNN, Al Jazeera, PBS NewsHour, and The Hill — drawing on multiple US officials and regional mediation sources — here is what the MOU is understood to contain:
A 60-day ceasefire extension. The MOU would formalize and extend the existing open-ended truce that has been in effect, with repeated violations, since April 8, 2026.
Unrestricted shipping through the Strait of Hormuz. Iran would allow commercial shipping to return to pre-war levels within approximately 30 days. The US has specified this means “no tolls and no harassment” and that Iran must remove any mines from the strait. Iran has simultaneously demanded that the US lift its naval blockade on Iranian ports at the same time — a sequencing dispute that remains unresolved.
Iran’s freedom to sell oil internationally. Sanctions relief is not immediate, but Iran would be permitted to sell oil freely during the 60-day window. Full sanctions relief would only be implemented as part of a final agreement that is “verifiably implemented,” according to US officials. Treasury Secretary Scott Bessent made the linkage explicit: there will be “no sanctions relief until Iranians agree that they have to turn over the highly enriched uranium.”
Iran’s commitment not to pursue a nuclear weapon. This is a political declaration in the MOU, not a verified technical arrangement. What it means in practice — inspection protocols, enrichment limits, facility closures — would be the subject of the negotiations the MOU launches.
Highly enriched uranium as the first negotiating topic. Iran’s stockpile of approximately 440.9 kilograms of 60%-enriched uranium would be the first substantive issue addressed during the 60-day window. According to the International Atomic Energy Agency (IAEA), 60% enrichment is a short technical step from weapons-grade 90% purity.
US commitment to discuss sanctions relief and frozen funds. The US would agree to negotiate over lifting sanctions and releasing billions in frozen Iranian assets during the 60-day period. These steps would only be implemented as part of a final, verified deal.
An end to the Israel-Hezbollah war in Lebanon. The MOU reportedly includes language stating that the war between Israel and Hezbollah in Lebanon would also end as part of the agreement — a provision that has generated significant tension between Washington and Jerusalem.
US forces remain in the region. American military assets mobilized for the conflict would stay in place during the 60-day window and only withdraw upon a final agreement.
4. The Strait of Hormuz: The Economic Core of the Deal
No geographic feature has greater leverage over global energy markets than the Strait of Hormuz. The strait is approximately 33 kilometers wide at its narrowest point, lying between Iran’s southern coast and Oman. Through this passage flows roughly 20 million barrels of oil per day — oil from Saudi Arabia, Iraq, Kuwait, the UAE, and Iran itself — representing approximately 20% of global petroleum supply. The US Energy Information Administration has consistently identified it as the world’s most critical oil chokepoint.
When Iran effectively restricted the strait following the February 2026 attacks, oil prices surged sharply. Gulf states — Saudi Arabia, Qatar, and the UAE — immediately pressed Trump to de-escalate. Their urgency reflected not just regional stability concerns but existential economic ones: their own oil revenues depend on free passage through a waterway Iran can threaten from its own coastline.
Trump has been emphatic on one specific point throughout negotiations: no single nation will control the Strait of Hormuz. When Iranian state media reported that under a draft MOU, “Iran and Oman would manage traffic through the strait,” the White House immediately dismissed the report as a “complete fabrication.” This remains one of the most sensitive points in the talks — Iran wants a face-saving role in managing the waterway; the US refuses to grant it.
5. The Nuclear Question: 440 Kilograms of Enriched Uranium
The Strait of Hormuz is the economic argument for a deal. Iran’s nuclear program is the strategic argument against one — at least on US and Israeli terms.
According to the International Atomic Energy Agency, Iran holds approximately 440.9 kilograms of uranium enriched to 60% purity. Weapons-grade uranium requires enrichment to 90% — a short technical step from 60%. A nuclear weapon typically requires 15–20 kilograms of highly enriched uranium, meaning Iran’s current stockpile, if further enriched, would theoretically be sufficient for multiple devices.
The US and Israel struck Iran’s known nuclear sites during the 2025 Twelve-Day War, and Trump subsequently claimed Iran’s nuclear program had been “obliterated.” That claim proved overstated: the IAEA reported in early 2026 that Iran had stored highly enriched uranium in an underground facility undamaged by those strikes. Iran subsequently denied inspectors access to bombed sites, with Iran’s Atomic Energy Organization insisting the IAEA must first establish “rules for the post-war situation” before inspections resume.
Trump has been explicit: the uranium must be “turned over to the US or destroyed at another acceptable location.” Iran has not agreed to those specific terms. The Council on Foreign Relations notes that Iran has consistently framed its enrichment program as a civilian energy right under the Non-Proliferation Treaty — a position that Tehran’s history of concealment has made difficult for the international community to accept at face value.
Under the proposed MOU, Iran commits “not to pursue a nuclear weapon” — a political declaration — and uranium disposal becomes the first substantive negotiating topic. Iran’s Foreign Ministry has described the two sides as both “very far and very close” to agreement, noting the US has put forward “conflicting stances several times.” For a deeper look at the military imbalance that shapes Iran’s nuclear calculus, see: Why Is the IDF Considered One of the Best Armies in the World?
6. What Iran Is Disputing — and Why
Iran’s public position on the MOU has been deliberately ambiguous — a calculated negotiating stance, but one that reveals genuine points of contention.
Iran’s state media — including Fars News Agency, which has close ties to the Islamic Revolutionary Guard Corps — issued a direct rebuttal after the MOU was first reported: Iran “has made no commitments in this agreement regarding handing over nuclear stockpiles, removing equipment, closing facilities, or even pledging not to build a nuclear bomb.” This flatly contradicts what US officials told Axios and other outlets. The gap may reflect domestic political positioning for Iranian audiences; it may also reflect a genuine disagreement about what was agreed.
Iran has also been consistent on Lebanon. Tehran insists that any ceasefire agreement must include a resolution to the Israel-Hezbollah conflict — the two wars are inseparable in Iran’s framing. Israel’s continued strikes on Beirut even as MOU negotiations were ongoing put the deal under direct pressure. Iran’s top negotiator warned that talks would be halted “if Israel continued attacks on Lebanon.”
There is also a sequencing dispute: Iran has stated that talks about uranium can only begin after an MOU ending the war is formally agreed — not as a precondition embedded within it. The US and Iran appear to hold genuinely different interpretations of the deal’s structure.
Separately, the IAEA has publicly urged Tehran to “constructively engage” with the agency on its nuclear material — diplomatic language indicating that the international community’s confidence in Iranian intentions remains limited.
7. Five Reasons the Deal Could Still Collapse
1. Trump hasn’t approved it. Despite telling reporters a deal could be announced “as soon as this weekend” on multiple occasions in late May and early June, Trump had still not formally signed as of June 7. He told reporters he was “not in a rush.” That phrase signals either strategic patience or genuine reservations — it is not possible to distinguish the two from the outside.
2. Iran’s internal divisions. Iran’s government is not monolithic. The Revolutionary Guards (IRGC), whose affiliated media has been most hawkish in rejecting the MOU terms, have significant operational independence. What diplomats agree to in Doha may face obstruction from IRGC commanders who have their own institutional interest in maintaining pressure posture.
3. Israel’s actions in Lebanon. Netanyahu and Trump reportedly had at least one “tense discussion” over Lebanon. The IDF Chief of Staff publicly declared there is “no ceasefire for our forces” in Lebanon even as diplomatic teams finalized MOU language in Washington. Iran has stated explicitly that Lebanon must be part of any deal. If Israel escalates in Beirut, talks collapse.
4. Continued US sanctions pressure. Even as negotiators were finalizing MOU text, the US Treasury Department imposed additional sanctions on the Iranian military’s oil sales arm. Imposing economic pressure while simultaneously seeking diplomatic agreement sends mixed signals to Tehran’s hardliners and provides ammunition for those arguing the US cannot be trusted to honor commitments.
5. The unbridged nuclear gap. Trump demands Iran surrender or destroy its enriched uranium. Iran’s state media denies any such commitment was made. The 60-day MOU is, in structural terms, designed to defer rather than resolve this gap. That deferral can work — it buys time for both sides to find a face-saving solution — or it can simply delay an inevitable breakdown to Day 61.
8. What Happens If the MOU Is Signed — or Isn’t
If signed, the immediate consequences would be significant. Oil prices would likely fall as Hormuz reopens and markets price in reduced conflict risk. Gulf states would gain the stability they have urgently sought. The US and Iran would enter a 60-day window to negotiate the hardest questions — nuclear material, sanctions, Lebanon, and a long-term framework. Whether those negotiations succeed is a separate question; the MOU itself is a framework, not a resolution.
If the deal collapses — through Trump declining to sign, Iran walking away, or Israeli escalation derailing the talks — the existing ceasefire does not automatically void. Trump’s April 21 open-ended extension technically remains in place. But without a formalized framework, the risk of a return to active conflict rises sharply. Iran has already demonstrated it can strike Kuwait and Bahrain. US “defensive strikes” in southern Iran have continued. The Gulf remains on a hair-trigger.
For the global economy, a return to sustained Hormuz closure and active conflict would push oil prices significantly higher and carry recession risk for several import-dependent economies. The Council on Foreign Relations notes there is no viable alternative route for most Gulf oil — a closure has no short-term workaround.
The coming days are decisive. TodayWhy will update this article as developments occur. For the broader geopolitical context of why the US is in this conflict at all, see: Why Does the US Support Israel? 7 Key Reasons Behind a 78-Year Alliance.
9. Frequently Asked Questions
What is the US-Iran MOU deal?
A tentative 60-day memorandum of understanding agreed at the negotiator level in late May 2026 to extend the ceasefire, reopen the Strait of Hormuz, allow Iran to sell oil freely, and launch nuclear negotiations. It requires formal approval from both Trump and Iran’s senior leadership, which has not yet been given.
Has Trump signed the Iran MOU deal?
No. As of June 7, 2026, President Trump has not given final approval, and Iran has not formally confirmed the deal. Negotiators agreed on text by May 27-28, but authorization from both governments remains pending.
What does the Iran MOU include?
A 60-day ceasefire extension; unrestricted Hormuz shipping; Iran’s right to sell oil; a pledge not to pursue nuclear weapons; opening negotiations on Iran’s enriched uranium stockpile; and US commitments to discuss sanctions relief and frozen Iranian funds as part of a final verified agreement.
Why does the Strait of Hormuz matter so much?
Approximately 20 million barrels of oil per day — roughly 20% of global supply — pass through the 33-km strait. Iran’s ability to threaten it is its primary economic leverage. Gulf states and global markets cannot sustain a prolonged closure.
What happens to Iran’s enriched uranium under the deal?
Iran holds ~440.9 kg of uranium enriched to 60% — close to weapons-grade. The MOU makes this the first negotiating topic during the 60-day window. Trump demands it be transferred to the US or destroyed. Iran has not agreed to those specific terms and its state media has denied any such commitment.
Why could the Iran deal still fall apart?
Five main risks: Trump has not approved; Iran’s state media disputes key MOU terms; the IRGC has independent influence; Israel’s Lebanon strikes could derail talks; and the US Treasury imposed new Iran sanctions even as MOU text was being finalized.
Continue reading — Why Iran & Why Israel:
- Why Is Israel Stronger Than Iran Militarily? A 2026 Full Comparison — The military balance that shapes both sides’ negotiating positions.
- Why Is the IDF Considered One of the Best Armies in the World? — Israel’s operational capabilities and their role in the 2026 conflict.
- Why Does the US Support Israel? 7 Key Reasons Behind a 78-Year Alliance — Why US decisions on Iran cannot be separated from the US-Israel relationship.