US and Iranian negotiators advanced a nascent framework in Bürgenstock, Switzerland, where the US vice president said Iran agreed to readmit nuclear inspectors and mediators announced a 60-day roadmap toward a final deal. The talks also set up a deconfliction line for Lebanon and a high-level oversight committee, even as Israeli strikes and Hezbollah attacks continued to test the emerging arrangements.
The progress matters because renewed IAEA access and a managed de-escalation mechanism could stabilize a volatile file spanning nuclear monitoring, safe transit through the Strait of Hormuz and the Lebanon front. The memorandum signed last week explicitly recognized the agency’s role and outlined steps to reopen maritime traffic and end fighting on all fronts, while technical discussions on enrichment and sanctions were scheduled to begin immediately.
IAEA access and 60-day roadmap from Bürgenstock talks
US Vice President JD Vance said Iran would allow nuclear inspectors back, calling it “the first step in permanently ending Iran’s nuclear weapons program.” Tehran has maintained its activities are for civilian purposes, but the new memorandum referenced the verification work of the IAEA, with Director General Rafael Mariano Grossi welcoming the opening for concrete technical measures. Talks with the agency were expected to begin as soon as today under a structured process that sets a maximum of 60 days to reach a final deal on the scope of enrichment and related controls.
The agreement followed years of reversal since the 2015 JCPOA which capped Iran’s program and enabled inspections until the US withdrawal in 2018. After a 12-day war in June 2026, Iran suspended IAEA access to sites struck during the hostilities and remaining inspectors left the country the following month. In Switzerland, mediators also announced a communication line to prevent incidents at sea and enable safe passage for commercial vessels, part of a plan to reopen the Strait of Hormuz and restore confidence in maritime security.
Lebanon de-confliction cell and ceasefire strain
Negotiators agreed to create a de-confliction cell between the US, Iran and Lebanon, with facilitation by mediators, to end operations in Lebanon and prevent escalation. Iranian Foreign Minister Seyed Abbas Araghchi called the cell the “first real test” of the process and highlighted ongoing discussions on oil exports, the blockade of Hormuz, frozen Iranian assets and major reconstruction plans. While the initial deal envisioned fighting stopping on all fronts, the battlefield remained active, challenging the nascent ceasefire framework.
Israeli air strikes killed at least 67 people in Lebanon, while Hezbollah attacks killed five Israeli soldiers according to figures relayed by the parties in the talks. The continuation of strikes and rocket fire underscored the fragility of the initiative and the urgency of making the de-confliction mechanism operational. Technical teams were tasked with translating the political understandings into practical steps on monitoring, hotline protocols, and rules of engagement to reduce miscalculation along the border.
Rhetoric and oversight: Trump’s threats and committee
The negotiations were overshadowed by sharp threats from President Donald Trump who warned he would “hit Iran very hard” and said that if Iran closes the Strait of Hormuz, the US will “blow the s— out of them.” Iranian officials protested that any threat would violate the agreement, with the delegation signaling it was reviewing a response. The US military separately denied Tehran’s claims to control the waterway adding to friction around maritime security even as a deconfliction channel was being set up.
Despite the rhetoric, mediators from Qatar and Pakistan described the opening session as constructive and announced a High Level Committee to provide political oversight of the mediation. The committee’s mandate includes supervising technical talks on nuclear limits, sanctions relief, and dispute resolution, and ensuring the new communication line operates to avoid incidents. Vance said the first round “laid a very good foundation,” while Iranian negotiators indicated discussions would continue through the week, with the lead team departing Bürgenstock on Monday and expert-level engagement carrying forward.
Last update: 22 June 2026
