High-level US and Iranian delegations commenced talks in Switzerland, mediated by Pakistan and Qatar, aiming to solidify a peace framework amidst escalating regional tensions. US Vice President JD Vance and Speaker Mohammad Bagher Ghalibaf lead their respective delegations at the Burgenstock resort. The discussions prioritize Iran's nuclear program and a ceasefire in Lebanon, tied to a 60-day interim US-Iran deal. The rapid nature of the initial Memorandum of Understanding (MOU) signing by President Trump, which was done ahead of schedule, has left some critical issues unresolved, particularly regarding the Strait of Hormuz and the Israel-Hezbollah conflict in Lebanon.

Despite a recently established ceasefire, Israeli strikes in Lebanon killed 83 people in 24 hours, intensifying pressure on these discussions and widening regional instability. Iran responded by announcing a closure of the Strait of Hormuz, citing sustained Israeli military operations in Lebanon and alleged failures to fully implement commitments from the interim accord. This move, while initially unclear in its immediate impact on shipping, injected fresh economic uncertainty into the negotiations. US military and monitors reported little immediate change in traffic, but the Iranian Revolutionary Guards warned ships in the Strait would be at risk, while the US military affirmed its commitment to ensuring commercial passage.

The conflict in Lebanon is a major point of contention, as neither Israel nor Hezbollah are direct parties to the US-Iran MOU, yet their ongoing fighting threatens its implementation. An unnamed Hezbollah official indicated that Iran links the full reopening of Hormuz to Israel's public commitment to a comprehensive ceasefire in Lebanon. This situation places Lebanon at the center of the MOU's future, highlighting the challenge of resolving broader regional conflicts despite efforts to end direct US-Iran hostilities. A recent Israeli poll revealed significant public skepticism, with 92.1 percent believing Iran emerged as the winner, 82.9 percent stating Israel's long-term security was weakened, and 87.8 percent concluding Israel failed or only partially met its objectives in the recent conflict.