High-level US-Iran negotiations end in Switzerland; technical discussions to continue.

High-level U.S.-Iran peace talks in Switzerland ended early Monday after Iranian negotiators walked out, angered by threats from President Donald Trump. Mediators say lower-level technical teams will stay at the Bürgenstock resort near Lucerne for the rest of the week to work on key details, according to Journal-News.
The walkout came after Trump posted on Truth Social and told Fox News that the U.S. would "hit Iran very hard" if its proxy forces in Lebanon kept fighting, according to Voice of Alexandria. The two sides had agreed to create a diplomatic framework just days earlier, making Trump's remarks a sharp turn that shook an already fragile process.
The war began on February 28, 2026, when U.S. and Israeli forces struck Iranian military and nuclear sites. At least 7,000 people have been killed since then. After months of fighting, Pakistan and Qatar brokered the Islamabad Memorandum of Understanding on June 17 — a 14-point document that ordered both sides to stop military operations and gave them 60 days to reach a permanent deal.
High-level talks opened June 21 at Bürgenstock with Vice President JD Vance and Iranian Parliament Speaker Mohammad Bagher Ghalibaf leading their sides. By midday, Trump was posting threats online. By evening, the Iranian delegation had walked out. Ghalibaf warned: "They would do better to be careful about their statements... it is we who act."
The Islamabad MoU's very first article requires the U.S. to refrain from "threats of force." Iran's delegation said Trump's posts and interview "blatantly violated" that clause. Iranian state media called the rhetoric "insulting" and said Iran will not negotiate "under the shadow of a threat," according to GoSkagit.
Trump also threatened to seize the Strait of Hormuz and impose U.S. tolls on oil passing through it. That spooked markets. Brent crude futures rose to $82.30 per barrel on Monday morning — up about 1.35% — after news of the walkout spread. Vance tried to soften the mood, asking: "Can we turn over a new leaf?" But the damage was already done.
After the face-to-face sessions broke down, mediators from Qatar and Pakistan switched to "shuttle diplomacy" — carrying messages back and forth between the two sides rather than putting them in the same room. The Qatari Prime Minister and Pakistani Prime Minister Shehbaz Sharif worked through the night to prevent a full collapse of the Islamabad process.
Former U.S. diplomat Matthew Bryza said Trump's hard-line posts may be a deliberate "Good Cop/Bad Cop" strategy with Vance playing the calm partner. But Bryza warned it risks pushing Iran to quit the talks entirely, according to Goshen News. Qatar and Pakistan publicly called the walkout a "recess" to stop markets from panicking.
Nuclear experts and maritime law specialists are now the last negotiators left at Bürgenstock. Their top tasks are Clause 4 — setting the level at which Iran can enrich uranium — and Clause 10 — lifting sanctions and unfreezing Iranian assets. If no permanent deal is signed by mid-August 2026, Trump has threatened a 20% "security toll" on all oil moving through the Strait of Hormuz.
Israel adds another wild card. Prime Minister Benjamin Netanyahu said Israel is "not a party" to the Swiss talks and will keep striking Hezbollah in Lebanon regardless of any U.S.-Iran agreement. The Islamabad MoU requires an "immediate and permanent" end to fighting in Lebanon. Continued Israeli strikes remain the most likely threat to any deal the technical teams can reach, according to KDH News.
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