Vance Arrives as Iran Talks Face Lebanon and Hormuz Tests

Vance arrives – Vice President JD Vance and senior Iranian officials arrived in Switzerland to formally launch negotiations on Tehran’s nuclear program and to build out a fragile interim framework tied to ending the war in Iran—only as fighting in Lebanon escalated and Iran a

When Vice President JD Vance stepped into the flow of U.S.-Iran diplomacy on the outskirts of Switzerland, the plan was clear: open formal talks on Tehran’s nuclear program and move quickly through a 60-day sprint to flesh out a fragile interim deal aimed at ending the war in Iran.

But the timing felt brittle. Only days after the framework was signed last week. it was already being stress-tested—first by fighting escalated in Lebanon earlier this week between Israel and the Iranian-backed militant group Hezbollah. and then by Iran’s military announcement that it had again closed the Strait of Hormuz. A renewed ceasefire in Lebanon brokered on Saturday appeared to be holding.

On Sunday, Vance and senior Iranian officials arrived in Switzerland to launch the negotiations at a mountainside resort near Lake Lucerne, with mediators and nuclear oversight officials moving into position even as the wider conflict refused to stay still.

Vance opened the day with meetings that looked designed to widen the diplomatic net. He sat down for talks with Pakistani Prime Minister Shehbaz Sharif and Staff Field Marshall Asim Munir, who has served as a key intermediary between the United States and Iran throughout the conflict.

Vance greeted Munir warmly, saying: “What’s up, man! Good to see you.”

Mediators from Qatar were also on hand at the Bürgenstock resort on Sunday morning.

Rafael Grossi. chief of the United Nations nuclear watchdog—the International Atomic Energy Agency—met with Swiss Foreign Minister Ignazio Cassis on the sidelines of the gathering. The IAEA monitored the 2015 nuclear deal negotiated between the U.S. and Iran under the Obama administration. The Trump administration withdrew the U.S. from that agreement in 2018.

A separate thread of urgency ran through Iran’s negotiating posture. During talks on Sunday, Iran’s main focus would be the ongoing war between Israel and Lebanon, Iranian Foreign Ministry spokesman Esmail Baghaei told Iran’s state news agency on Sunday.

Iran, he said, is insisting that implementation begin with the part of the deal calling for a cessation of all wars, including between Israel and Hezbollah—and that the U.S. “has been unable or unwilling” to hold Israel to the ceasefire.

Iranian officials were scheduled to hold meetings with Pakistani and Qatari mediators before a planned four-way meeting that would include the U.S. negotiating team.

In Switzerland, caution was explicit and personal history was hard to miss. Iran is approaching the negotiations cautiously given its previous experience with U.S. nuclear talks that, twice in the past year, were interrupted by massive strikes against the country. “The implementation of any document is more important than its signing,” Baghaei said Sunday.

Still, the insistence on leverage remained firm. Iran’s president, Masoud Pezeshkian, said Iran will maintain its right to a nuclear program. “What is certain is that we will never back down from the right to enrich uranium. and the other side is also forced to accept it. ” Pezeshkian said on Sunday. according to Iran’s state media.

The negotiations were supposed to begin earlier. Vance had originally been slated to be on the ground at the Bürgenstock resort near Lucerne on Friday, but his departure from the United States was delayed after fighting escalated in Lebanon and Iranian officials canceled plans to attend the talks.

Even as diplomacy moved forward, Iran’s military claim added another layer of pressure—this time aimed at global energy.

U.S. Central Command disputed Iran’s claim that Iran had once again shuttered the Strait of Hormuz, saying U.S. forces continued to monitor the situation to ensure traffic continues to flow through the waterway. Vance has said that millions of barrels of oil have moved through the strait in recent days.

Vance departed the U.S. just after Iranian state TV said Iran’s negotiators had arrived in Switzerland.

Tehran’s negotiating team includes parliamentary speaker Mohammad Bagher Qalibaf and Foreign Minister Abbas Araghchi, along with central bank and oil officials.

On the U.S. side, the vice president by special envoy Steve Witkoff and Jared Kushner—President Donald Trump’s son-in-law—were already on the ground in Switzerland to begin sifting through the technical details of the nuclear talks ahead of Vance’s arrival.

Vance and his wife, second lady Usha Vance, arrived at Emmen Air Base outside Lucerne just before 6 a.m. local time, according to his office.

Vance has said he planned to be in Switzerland for just “a day or two,” leaving much of the detailed negotiations to Witkoff and Kushner—yet his presence has heightened scrutiny, particularly as he is actively considering a 2028 presidential campaign.

The deal itself has been politically volatile in the U.S. Even before the ink had time to dry, Trump and Vance faced criticism from parts of their own party. Republican hard-liners have unfavorably likened the framework to a nuclear agreement signed by the Obama administration that Trump and the GOP have insisted did nothing to actually terminate Iran’s nuclear program.

Under the agreement signed by Trump and Iranian President Masoud Pezeshkian. Tehran would immediately be allowed to sell its oil freely and would be able to tap into billions of dollars in assets that are currently frozen. The deal also calls for Iran to dilute its stockpile of highly enriched uranium. believed to be buried under nuclear sites that were targeted in U.S. strikes last summer.

The agreement states that commercial vessels can pass through the Strait of Hormuz for 60 days without a charge. but it does not preclude future fees imposed by Iran. Trump made his own threat on Saturday to levy U.S. tolls on the strait if there is no deal with Iran in 60 days. insisting in a social media post that the money would be for “services rendered as the Guardian Angel to the countries of the Middle East.”.

For global markets, the stakes are partly measured in how fast worries turn into price shocks. The Trump administration has been working to reassure global markets that the Iran war has been merely a blip on oil prices. Americans have complained that the conflict has already pushed gasoline prices up ahead of peak summer travel.

After the White House announced the deal a week ago, oil futures dropped almost 8%, and markets are expected to track the progress of talks closely when trading opens on Sunday evening.

Behind the economic and energy calculations sits a hard diplomatic fact: neither Israel nor Hezbollah is a signatory to the deal between the U.S. and Iran. Israeli Prime Minister Benjamin Netanyahu has vowed to keep his forces in southern Lebanon until any threat to Israel is eliminated. Hezbollah has refused to halt its attacks unless Israel commits to withdrawing from Lebanon.

Fighting in the opening days after the U.S.-Iran agreement was signed killed 47 people in Lebanon and four Israeli soldiers.

As Vance arrived for the next round of talks in Switzerland. the question wasn’t whether the negotiations would begin—it was whether Lebanon and the Strait of Hormuz would keep pulling the deal back into the same cycle of escalation even as negotiators try to build the technical steps of an interim agreement.

JD Vance Switzerland Iran nuclear talks International Atomic Energy Agency Hezbollah Israel Lebanon ceasefire Strait of Hormuz Steve Witkoff Jared Kushner Masoud Pezeshkian Abbas Araghchi