US and Iranian negotiators agreed on a 60-day memorandum of understanding to extend the ceasefire and open nuclear talks. Donald Trump has not signed it. He spent the past week editing the draft, ordering “self-defense” strikes inside Iran, watching his Treasury impose fresh sanctions on the Iranian military’s oil arm, and saying Tehran was “negotiating on fumes.” The MOU on the table is not the end of a war. It is a snapshot of the leverage Washington is unwilling to release.
A Diplomatic Track Built on a Naval Blockade
The war began on 28 February 2026, when joint US and Israeli airstrikes killed Iran’s then-Supreme Leader Ali Khamenei and senior commanders. Iran responded by closing the Strait of Hormuz to foreign shipping. By 13 April, the United States had imposed a naval blockade on Iranian ports.
The MOU now under discussion sits on top of that blockade. Central Command conducted what it called “self-defense” strikes inside Iran the weekend before the planned signature, citing the shootdown of a US MQ-1 drone. The same week the framework was being finalized, the U.S. Treasury Department imposed additional sanctions on the Iranian military’s oil sales arm.
Iran did not initiate the war. Iran is not enforcing the blockade. The framing that places Tehran in the role of intransigent holdout obscures who is doing what to whom.
What the 60-Day Document Actually Locks In
According to a detailed Axios account confirmed by CBS and Al Jazeera, the draft commits Iran to: unrestricted shipping through Hormuz with no tolls, removal of all naval mines within 30 days, a public commitment not to develop or purchase nuclear weapons, and the start of 60 days of talks on its enriched uranium stockpile, missile program, and regional posture.
In exchange, Washington offers: a proportional lifting of the naval blockade as commercial shipping resumes, partial sanctions waivers to permit Iran to sell oil, and a discussion — not a commitment — about Iran’s frozen overseas assets and the end of Israel’s campaign in Lebanon.
The structural asymmetry is plain. Iran’s obligations are concrete and time-bound. Washington’s are conditional and staged. A senior US official told CNN that sanctions and frozen-asset relief will only begin once the Strait of Hormuz is open and fully functioning. The blockade and the sanctions architecture remain leverage; Tehran is asked to move first.
The 440.9-Kilogram Question
Iran holds approximately 440.9 kilograms of uranium enriched to 60% purity, per the IAEA’s last verification before Iranian inspectors were expelled in mid-2025. Trump wants it destroyed. Supreme Leader Mojtaba Khamenei has issued a directive prohibiting the removal of the uranium from Iran.
Article IV of the Treaty on the Non-Proliferation of Nuclear Weapons, to which Iran is a signatory, guarantees an “inalienable right” to peaceful nuclear technology, including domestic enrichment. That right is not prohibited under the NPT. The MOU treats it as a concession to be extracted.
Israel, which never signed the NPT and is assessed by the Federation of American Scientists to possess an undeclared arsenal of roughly 90 warheads, is not asked to declare, limit, or open a single site. The asymmetry is built into the geometry of the talks.
The Strongest Case for the Deal — and Where It Breaks
The strongest case for signing runs as follows. Any document that pauses the killing, opens Hormuz, and brings Tehran into direct nuclear talks is preferable to renewed war. Brent crude has plunged almost 19% in May, its worst month since the Covid-19 pandemic, on ceasefire optimism, settling near $92.56 per barrel. The Lebanese front continues to grind. A comprehensive framework could, in theory, close all of it.
The argument does not survive its own evidence. The bombs have not stopped. Israel has killed more than 3,000 people in Lebanon, including paramedics and civilians, since intensifying its campaign on 2 March. The US carried out strikes inside Iran during the very week of the MOU’s drafting. New US sanctions arrived mid-negotiation. Trump made edits to the document on Friday, sent them back to Iran, and Vice President JD Vance said it remains unclear “when, or if, the president’s going to sign.”
A diplomatic track in which one party retains military, economic, and rhetorical pressure while the other is asked to disarm, clear mines, and surrender enriched material is not a peace process. It is the codification of war’s outcome. The label “negotiation” does not change what it is.
The Numbers That Matter
Reports surfaced on 31 May that Iranian President Masoud Pezeshkian had submitted a resignation letter to the Office of the Supreme Leader, citing the IRGC’s effective takeover of decision-making. State media denied it the same day. The political center in Tehran is hollowing out as the document waits for signatures.
The International Energy Agency estimates restoring full Hormuz shipping flows will take at least six to eight months from the point a ceasefire takes hold. Even if Trump signs tomorrow, the physical relief is a year away.
Three thousand dead in Lebanon. Four hundred forty kilograms of uranium in Isfahan. Sixty days on a clock that has not started.
