A two-month truce is supposed to be a runway toward peace. This one was a countdown to the next threat, and the threat was aimed at a country that has not fired on the United States in two centuries of partnership.

"If Oman gets in the way, we'll bomb the s* out of them."

— President Donald Trump, on Fox News, August 17, 2026

On Monday the United States and Iran sat in their respective capitals and watched a deadline die. The 60-day Memorandum of Understanding, signed at Versailles in June under a banner of reconciliation and photographed against one of the oldest palaces in Europe, expired at the close of the day. Almost nothing in it remains. The strait it was supposed to open is still closed. The blockade it was supposed to lift is still in place. The talks it was supposed to set in motion never really started, and both sides agree on that much: they are further apart now than they were the day the pen touched the paper.

The MoU was always a thinner thing than it was sold as. It set aside two months to negotiate an end to a war the United States and Israel started on February 28, and it gave Iran a vaguely defined "role in facilitating traffic" through the Strait of Hormuz. That one clause, buried in the transcript and glossed over by the White House, became the whole war. Iran read it as a grant of control. Washington read it as a rounding error. And by the time either side finished reading, the other had already started firing at ships.

A week after the deal was signed, Iran began striking vessels that followed a shipping route along the Omani coast, a lane overseen by the U.S. military and designed to bypass Tehran. The U.S. struck back. Iran hit the Arab countries that host American forces: Jordan, Kuwait, Bahrain. The U.S. canceled the waivers that had let Iran sell oil and reinstated its blockade of the ports. Each side wrote a memo blaming the other for breaking a deal that, by the middle of July, was a historical footnote.

Translation: the paper was never the point. The strait was.

What made Monday different was not the silence on the American side but the noise. With the window closed and no extension in sight, Trump took to a Fox News interview and threatened a country that is not Iran. "Nobody is going to control it. It's international waters, and Oman will behave just like everybody else," he said, before adding, with all the calm of a man describing a minor inconvenience, that the United States would bomb the s* out of the sultanate if it got in the way.

This is the second time. In May, at a cabinet meeting, asked whether he would accept Oman and Iran jointly overseeing the strait, Trump answered that nobody was going to control it and that Oman would behave "or we will have to blow them up." At the time the question was whether he had misspoken, Iran in his mouth coming out as Oman. The State Department published a transcript that made clear he had not. A country that has never been at war with the United States, that mediated the peace talks this past spring, and that took Iranian strikes on its own soil this summer without answering, was, in the president's telling, on the list of things to bomb.

That is the arithmetic this war runs on. The enemy is not the only country on the bomb list. The mediator is. The neighbor is. The ally of two hundred years is a target if it dares to sign a piece of paper that Washington does not like.

Why Oman, and why now? Because Oman is the one thread of diplomacy that is actually moving. For weeks, with Qatar brokering in the background, Iran and Oman have been negotiating a mechanism to manage traffic through the strait, a waterway that carried a fifth of the world's traded oil and gas before the war and roughly 130 ships a day. On Monday, as the MoU expired, Iran's foreign ministry announced the two countries had agreed on a new shipping route and were preparing a joint declaration. Esmaeil Baghaei, the spokesman, framed it as the first mechanism to "simultaneously safeguard the sovereign rights of the two littoral states and ensure the safe passage of commercial vessels."

The United States, in this telling, is not a party. It is an audience. It is being cut out of the one negotiation that might reopen the waterway, and by a country it has called a friend for two centuries. Laleh Khalili, a professor of Gulf studies at the University of Exeter, put the American embarrassment plainly: a solution mediated without the U.S. and handed to Oman and Iran would show, she said, "how impotent the United States is and has been."

Trump does not appear to have accepted that framing. He has floated declaring the strait "a territory of the United States" once the war is done. He has insisted the U.S. controls the strait. He has suggested Iran should pay the war's reparations rather than collect them. None of these claims are grounded in international law, which has been quite clear that a natural waterway like Hormuz cannot be tolled or annexed. But the gap between what the law says and what the president says has never been more interesting to watch, and rarely has it cost a waterway its freedom.

On the other side of the strait, the answer has been building since the window closed. A senior Iranian official told Reuters that Iran would shift to a "fully offensive" military posture because diplomacy with the United States had stalled. The Revolutionary Guard's political deputy, Brigadier General Yadollah Javani, told state media that the military's actions until now had been "strictly defensive," but that the armed forces were "fully prepared" to move to offense. Iran's Revolutionary Guard dismissed Trump's claim that a backchannel was open to the IRGC as "fantasies caused by the delusions and nightmares" of a president "in the war." The word that did the work in that sentence was not "delusions." It was "defeat."

Both sides are now betting the other blinks first. The U.S. is banking on economic strangulation, on the blockade and the sanctions, to wear a battered economy into compliance. Iran is betting that a closed strait and a hostile Gulf do the same to a president whose approval on this war is underwater and whose country faces congressional elections. The Houthi rebels, meanwhile, have started hitting Saudi tankers in the Red Sea, which was the one relief valve for ships that could not get through Hormuz. The valve is closing too.

Brent crude, about $66 a barrel before the war, has topped $100 on several occasions and was trading near a three-week high this week. It is no longer a story about the Middle East. It is a story about the price at the pump in every state that votes in November.

The U.S. is also learning, in the unglamorous language of logistics, what this war actually costs. Army officials have conceded that the country has burned through "virtually all" of its ATACMS and Precision Strike Missile stock in the five months of fighting, and that its supply of Patriot and THAAD interceptors is down by half. The Pentagon has pushed back on the reports of a crisis, but the number of interceptors the U.S. can point at a future enemy is now a smaller number than it was in February, and the ones that remain are the ones that were supposed to be pointed at Asia.

That is the quiet trade this war makes: the missiles that were budgeted for one contingency are spent, one by one, on another.

So here is the shape of the impasse. The truce that was supposed to end the war has ended, and it did not end the war. The one negotiation that is making progress is one the United States is not in, and it is being conducted with a country the president has, twice, threatened to bomb. The two adversaries are each staring at the other's economy, waiting to see which one cracks first, and the clock they are waiting on has stopped.

The question was never whether the two countries could sign a peace deal. They could have, in June, and they did, in front of the whole world. The question is why a paper that both sides were photographed holding could be so easily traded for a threat that one of them aimed at the only country still trying to keep the waterway open. The strait was always going to be the fight. The only thing that changed on Monday was that the U.S. named its next target, and the target happened to be the peacemaker.

Sources: Associated Press, Al Jazeera, Reuters, CNBC, The Washington Post, CSIS, Fox News, CBS News, TIME.