21 Hours and Nothing to Show: What Really Broke Down Between Vance and Iran in Islamabad

The room was set. The flags were up. Pakistani tea and background music greeted journalists at the Jinnah Convention Center. For a moment, it looked like history was about to be made— the first face-to-face meeting between Washington and Tehran in more than a decade. These Islamabad talks were the highest-level US-Iran discussions since the 1979 Islamic Revolution.

Twenty-one hours later, JD Vance walked to a podium, thanked nobody in particular, and flew home.

What Happened Inside the Room

The American side brought its A-team. Vance was joined by Special Envoy Steve Witkoff and Trump’s son-in-law Jared Kushner, who have also led past US negotiations on Gaza and Ukraine. Iran sent Parliament Speaker Mohammad Baqer Qalibaf and Foreign Minister Abbas Araghchi. Pakistan, which pulled off a diplomatic coup just by getting both delegations into the same building, served as mediator.

For most of Saturday and deep into Sunday morning, the two sides sat across from each other — or, more precisely, across from Pakistani intermediaries who shuttled between rooms. Iran’s Foreign Ministry said that negotiations covered the Strait of Hormuz, Iran’s nuclear program, war reparations, lifting of sanctions, and a complete end to the war in the region.

Pakistani sources described the mood as fluctuating. Progress was made on some secondary issues. But on the two things that mattered most— the Strait of Hormuz and Iran’s nuclear ambitions— neither side would budge.

The Nuclear Impasse

Vance came with one non-negotiable: Iran must formally, permanently, and verifiably commit to never building a nuclear weapon. Not just today. Not just for two years. Forever.

Tehran wouldn’t say it.

“The simple question is: do we see a fundamental commitment of will for the Iranians not to develop a nuclear weapon— not just now, not just two years from now, but for the long term? We haven’t seen that yet,” Vance told reporters.

Iran insists its nuclear program is purely civilian. But that claim is hard to take at face value. According to the International Atomic Energy Agency, Iran had an estimated 972 pounds of 60%-enriched uranium as of mid-2025. Experts say 60%-enriched material is a short step from the 90% needed for weapons-grade levels. Vance also claimed that US airstrikes had destroyed Iran’s Fordo and Natanz enrichment facilities— a claim the IAEA has disputed.

From Tehran’s perspective, signing away its nuclear deterrent while US warships are parked in the Persian Gulf and Israeli jets periodically bomb its neighbours is not a concession— it is surrender.

The Hormuz Standoff

The second major fracture was over the Strait of Hormuz. Roughly 20% of the world’s oil and natural gas normally passes through the strait, and the disruptions caused Brent crude prices to jump 10–13% in early trading, with analysts warning they could reach $100 per barrel or higher if disruptions persist.

Iran hasn’t simply closed the strait. Iran has maintained control at the Strait, collecting tolls and controlling which oil tankers pass through the chokepoint. That is leverage— and Tehran knows it. Giving up that leverage without ironclad guarantees about sanctions relief and security assurances was never going to happen in a single overnight session.

Iranian sources argued that the Americans intended to achieve in the negotiation room what they could not achieve during the war, including full control over the Strait of Hormuz and the removal of nuclear materials from the country.

Iran’s Version: America Was Unreasonable

Iranian state broadcaster IRIB was direct in its blame. A spokesperson for Iran’s foreign ministry said disagreement on “two or three key issues” prevented a deal, noting that the two sides did reach agreement on some matters, but there was a “gap in viewpoints” on others.

Iran’s Foreign Ministry said the success of the diplomatic process depends on “the seriousness and good faith of the opposing side, refraining from excessive demands and unlawful requests, and the acceptance of Iran’s legitimate rights and interests.”

That language— “unlawful requests”— is pointed. It signals that Iran believes Washington was asking for things that go beyond standard arms control and into regime-level capitulation.

Trump’s “No Plan B” Problem

Before the talks began, Trump was asked what happens if Iran refuses to reopen the strait or the talks collapse. His answer was telling there is no backup plan.

“Their military is defeated. We have integrated everything. They have very few missiles. They have very few manufacturing capabilities,” Trump said.

That is almost certainly an exaggeration. But even if it’s partially true, a militarily weakened Iran holding a functional chokepoint over 20% of global energy supply remains a serious problem. Middle East oil producers have shut down 13 million barrels per day of production because tanker traffic through the Strait of Hormuz has plunged. Restoring that— even if a deal is struck tomorrow— will take months.

What Comes Next: Four Possible Scenarios

1. Diplomacy Continues Quietly

Iran’s foreign ministry spokesman struck a less definitive tone after the talks, saying “diplomacy never comes to an end,” and expressing confidence that Iran would remain in contact with Pakistan and other regional friends. Pakistan’s Foreign Minister also said Islamabad “has been and will continue” to play its mediator role. A back-channel deal, brokered through Islamabad, Muscat, or Beijing, remains possible within the ceasefire window.

2. The Ceasefire Holds, But Nothing Resolves

The fragile two-week ceasefire announced on April 7 may simply limp along— neither war nor peace. The strait stays partially open, oil prices remain elevated, and both sides test each other’s patience. This is the most likely near-term scenario, but it is not sustainable.

3. Military Escalation Resumes

Both Trump and Netanyahu hinted that the fighting may restart soon. Trump said the US military was loading new weapons and preparing for an attack if there was no deal. Netanyahu said that Israel had not achieved its goals and was prepared to resume operations. If Iran is seen as stalling rather than negotiating, a renewed strike campaign is realistic — particularly given Israeli pressure.

4. A Partial Deal on Hormuz Only

The most pragmatic outcome would be an agreement specifically to reopen the strait, decoupled from the nuclear question. Iran gets sanctions relief and security guarantees; the US gets shipping lanes. The nuclear issue gets kicked to a future, more formal negotiation framework. This is the kind of messy, face-saving compromise that rarely makes headlines but occasionally prevents wars.

The Oil Market: Brace for More Pain

With talks collapsed and no deal in sight, energy markets will react sharply when trading opens Monday. Analysts expect Brent crude to rebound toward $100 per barrel or higher as the risk of ceasefire breakdown rises.

The broader picture is grim. The closure of the Strait of Hormuz disrupted 20% of global oil supplies and significant LNG volumes. Following the closure, Brent Crude surged past $120 per barrel and QatarEnergy declared force majeure on all exports. Even if the strait reopens tomorrow, it could take until June to redirect tanker ships back to the Middle East, with analysts estimating it may take as long as five months to fully restore production capacity.

For India, which imports over 85% of its crude oil needs, this is a slow-burning crisis. LPG prices, already firming due to supply disruptions in the Gulf, will face renewed upward pressure. Fertilizer costs— which flow from the same petrochemical chain— will follow. That means food prices.

The IEA has called this the “greatest global energy security challenge in history.” That is not hyperbole.

Kharg Island and the Military Wildcard

Speculation about a US military push to capture or neutralize Kharg Island— Iran’s primary crude oil export terminal — has circulated in strategic circles. The logic is straightforward: taking Kharg would simultaneously cripple Iran’s oil revenue and signal maximum escalation. But it would almost certainly trigger Iranian attacks on Gulf Arab infrastructure, set off a regional war, and push oil past $150 a barrel overnight. No serious US military planner is advocating for it as a first option. It is a last resort— the kind that gets considered when diplomacy has completely failed.

We are not quite there yet.

The Bottom Line

What happened in Islamabad was not just a negotiating failure. It was a collision of two fundamentally incompatible positions. The US wants a permanently non-nuclear Iran with an open strait and no ability to reconstitute its deterrent. Iran wants to survive, maintain sovereign leverage, and not disarm in exchange for promises from an administration that previously tore up the last nuclear deal.

Neither side is entirely wrong. Neither side is prepared to give what the other needs.

The ceasefire holds— for now. The strait is partially open— for now. The world is watching oil prices tick upward again, and somewhere in Islamabad, Pakistan’s diplomats are probably already drafting their proposal for round two.