Sixty days. That is the window Iranian and American negotiators gave themselves on Wednesday to turn a hastily signed memorandum into something resembling a durable settlement. Already the clock feels less like a deadline than a fuse. President Donald Trump put his name to the document at Versailles, of all places, after a dinner with Emmanuel Macron, and within hours Tehran was telling its own people that the gilded ceremony had changed less than Washington might hope.

The text will not be public until Friday at the latest, according to Vice President JD Vance, which means the world has spent a full day reacting to a deal it cannot read. Senior US officials read portions aloud to reporters instead. The broad strokes go like this: an immediate and permanent halt to fighting, Lebanon included, in exchange for an oil sanctions waiver for Iran and a commitment that Tehran's enriched uranium stockpile will be destroyed. Sanctions relief and nuclear concessions are bound together in the language, so neither can happen in isolation.

That is the architecture. Whether it holds is a separate question, and the first crack appeared faster than anyone in the Trump delegation would have liked.

The strait of Hormuz becomes the sticking point

For a deal sold as a triumph, the most consequential line came not from Versailles but from Iranian state television. Mohammad Bagher Ghalibaf, Tehran's chief negotiator, told viewers that the waterway would not return to how it operated before the war. He cast it as a matter of sovereignty, and said Iran intends to collect what he called a fee for services once a 60-day toll-free grace period runs out. The foreign ministry spokesman, Esmail Baghaei, added that responsibility for the strait would be shared between Iran and Oman.

Grasp the numbers and the bravado stops sounding like rhetoric. Roughly a fifth of the world's oil and liquefied natural gas moves through that channel on an ordinary day. A toll regime, even a modest one, would be a structural change to how global energy flows are priced. It would also hand Tehran a lever it has spent decades merely threatening to pull. Iran had reportedly stopped firing on vessels in the strait in the run-up to the agreement, a goodwill gesture of sorts. Charging them to pass is a different proposition altogether.

Trump has said before, flatly, that he would not stomach tolls on the route. Pressed to defend the deal anyway, he argued that without it the strait would never have reopened, and the result would be a worldwide depression. So the president who refuses to accept the tolls has signed a document that, by Tehran's reading, leaves the door open to them. Both things cannot comfortably be true. One of them will have to give inside two months, and the memorandum offers no obvious mechanism for forcing the question.

What each side actually walked away with

Strip out the ceremony and the deal reads like a trade made under pressure by two governments that both needed a way out. Iran got the thing it most wanted in the near term: a waiver on oil sanctions that lets its crude back onto legitimate markets. It did not, however, get its frozen assets released on signing, which it had pushed for. The stockpile concession is real and significant. Conceding that the enriched material must be destroyed is the kind of thing hardliners in Tehran do not surrender lightly, which tells you something about how badly the war was going for them.

Washington got a ceasefire it can point to and a nuclear rollback it can sell at home. The cost is harder to total. Trump himself undercut the framing by insisting the 60 days is not a hard deadline, language that makes the central timeline sound negotiable before negotiations have even begun. And his warning that the US would "go right back to dropping bombs" if Iran misbehaves is not the vocabulary of a settled peace. It is the vocabulary of a pause.

The reviews at home split along predictable lines, though not entirely. One US senator called the agreement the worst foreign policy blunder in decades, a charge aimed squarely at the strait language and the sense that Tehran won relief without surrendering its capacity to make trouble. Abroad, the verdict ran warmer. The G7 leaders, gathered as the news broke, issued a joint statement backing the tentative arrangement in approving terms, having already called for an immediate ceasefire in Lebanon. Pakistan's prime minister said the deal took effect immediately. Approval and durability are not the same currency, though, and the G7's enthusiasm is the easy part.

Lebanon and the missing signatures

Two absences are worth flagging. Lebanese President Joseph Aoun made clear that Beirut is charting its own course, separate from the US-Iran track, which complicates the claim that the memorandum delivers peace across the region. A ceasefire that one of the affected parties insists it negotiated independently is a ceasefire with caveats.

Then there is Benjamin Netanyahu. The Israeli prime minister said he had not seen the document. US officials countered that he had not asked to. Read that exchange however you like, but a deal ending a war that Israel waged alongside the United States, signed without the Israeli leader having reviewed the text, is the sort of detail that tends to matter later. Where it leaves the US-Israel relationship was the question several analysts were already circling on Wednesday night, and nobody had a confident answer.

What to watch over the next 60 days

The memorandum buys time, and in a shooting war time carries value of its own. People who would otherwise be dying are not. That counts for something, and it would be churlish to pretend otherwise.

But the structure is brittle in ways the ceremony at Versailles was built to obscure. The defining test arrives when the toll-free period on the strait of Hormuz expires and Tehran moves to start charging, exactly as Ghalibaf promised on television. At that moment the deal either survives a direct contradiction between what Iran says it will do and what Trump says he will tolerate, or it does not. There is also the small matter of the actual text, due Friday, which may confirm the readouts officials offered this week, or quietly contradict them.

Watch the oil markets, watch Beirut, and watch whether Netanyahu decides to read the document after all. A war was paused in a French palace on Wednesday. Whether it was ended is a verdict the next two months will deliver, and the early signs from Tehran, recall that line about a fee for services, suggest nobody should bank on the optimistic version just yet.