Vice President JD Vance arrived in Switzerland early Sunday morning to lead the U.S. delegation in technical-level talks with Iran, marking the next phase in implementing the fragile Islamabad Memorandum of Understanding signed last week. The developments come amid ongoing tensions over Israeli strikes in Lebanon and Iranian claims about the Strait of Hormuz, even as U.S. leadership expressed measured confidence in the peace process on June 20 and 21.

President Donald Trump and Vice President Vance delivered key public statements emphasizing progress through strength, the conditional nature of the interim deal, and hopes for concrete advances on Iran’s nuclear program and a Lebanon ceasefire during the 60-day negotiation window.

Vance’s arrival and statements

Vance departed Joint Base Andrews on Saturday afternoon and landed in Switzerland shortly before 6 a.m. local time on Sunday. He is expected to participate in talks for only one or two days, focusing on structuring negotiations and advancing implementation of the interim agreement.

Before boarding his flight on June 20, Vance told reporters he was optimistic about the process.

I can only be there for a day or two. I think we’re going to hopefully make progress on the nuclear issue, make progress on the Lebanon ceasefire issue. Vice President JD Vance

He expressed confidence that the ceasefire outlined in the Islamabad MoU would hold, and stated he had seen no evidence that the Strait of Hormuz had been closed, despite Iranian assertions to the contrary. Earlier remarks from the White House highlighted that the Islamabad MoU was already, in their characterization, bearing real fruit.

Vance joins special envoy Steve Witkoff and presidential adviser Jared Kushner, who arrived earlier to handle technical details. The U.S. team is working alongside mediators from Pakistan and Qatar at the historic Bürgenstock resort, a venue long associated with high-stakes diplomacy.

Trump’s positions on the deal and next steps

President Trump has framed the Islamabad MoU as an important but non-final step achieved through what he has called peace through strength. In remarks around the time of the agreement’s signing, he noted that if the terms ultimately proved unsatisfactory, the U.S. could resume military pressure.

More recently, he warned that if a comprehensive deal is not reached within the 60-day window, the United States could impose tolls on Strait of Hormuz traffic as compensation for its stabilizing role in the region, while insisting the waterway must remain toll-free during the current negotiation period.

Trump’s approach continues to blend diplomatic engagement with firm red lines on Iran’s nuclear ambitions and regional behavior, consistent with the objectives of Operation Epic Fury earlier this year.

Background: from conflict to the Islamabad MoU

The current diplomatic push follows months of intense fighting that began with Operation Epic Fury in late February 2026. The electronically signed 14-point Islamabad MoU, endorsed physically by Prime Minister Shehbaz Sharif as mediator, calls for an immediate and permanent end to military operations on all fronts, including Lebanon, the reopening of the Strait of Hormuz, the lifting of certain U.S. sanctions and the naval blockade, and a 60-day timeline for further talks on Iran’s nuclear program alongside a proposed reconstruction framework.

Technical talks in Switzerland represent the first major follow-up to translate that memorandum into verifiable implementation steps.

At a glance: the Islamabad MoU
Signed
Last week, electronically; physically endorsed by PM Shehbaz Sharif as mediator
Core terms
Permanent end to operations on all fronts, including Lebanon; reopening of Hormuz; partial sanctions and naval blockade relief
Timeline
60-day window for nuclear-program talks and a proposed reconstruction framework
Mediators
Pakistan and Qatar
U.S. delegation in Switzerland
VP JD Vance, envoy Steve Witkoff, adviser Jared Kushner
Iranian delegation
Speaker Mohammad Bagher Qalibaf, Foreign Minister Abbas Araghchi

Challenges and Iranian positions

Tensions remain high. Iran has linked progress on nuclear issues to a firm Lebanon ceasefire and U.S. pressure on Israel to halt strikes in southern Lebanon, which Tehran views as violations of the interim deal. Iranian negotiators, including parliamentary Speaker Mohammad Bagher Qalibaf and Foreign Minister Abbas Araghchi, arrived in Switzerland emphasizing the need for the other side to fulfill its commitments.

Fighting between Israel and Hezbollah has continued, prompting Iranian claims of renewed closure of the Strait of Hormuz, disputed by U.S. officials. These frictions briefly clouded the atmosphere but have not derailed the scheduled technical discussions.

Pakistan’s continued mediation role

Pakistan, which hosted the initial breakthrough and facilitated the Islamabad MoU, has dispatched a high-level delegation to Switzerland alongside Qatar to support the talks. The effort has been widely credited with elevating Pakistan’s diplomatic profile, as noted in recent international reporting.

Outlook

The coming days in Bürgenstock will test whether the interim ceasefire can be turned into durable progress on nuclear constraints and regional de-escalation. U.S. leadership under President Trump and Vice President Vance has signaled willingness to engage seriously while maintaining leverage and clear conditions.

Success could stabilize global energy markets, reduce the risk of broader conflict, and open pathways for longer-term understandings. Failure or renewed violations risk rapid re-escalation.

As technical teams convene today, the world watches for concrete deliverables on implementation timelines, verification mechanisms, and parallel steps toward a Lebanon ceasefire.