Overview
- Senior U.S. and Iranian delegations arrived in Bürgenstock, Switzerland and opened technical talks on Sunday to try to turn a provisional 60-day memorandum into a durable ceasefire and nuclear understanding.
- Iran’s armed forces announced the closure of the Strait of Hormuz in response to Israeli operations in Lebanon, while U.S. Central Command said commercial traffic continued under U.S. monitoring with dozens of merchant ships transiting.
- President Trump publicly threatened to impose tolls on Hormuz transit after the 60-day window and warned of renewed attacks on Iran if Tehran did not restrain its proxies in Lebanon, escalating public pressure on negotiators.
- Iran has made implementation contingent on a halt to Israeli strikes in Lebanon and warned that continued operations there could invalidate the provisional deal, a position that negotiators say will be a central sticking point.
- Mediators from Pakistan and Qatar are facilitating the talks but the process is fragile and could quickly affect global oil flows, civilian safety in Lebanon and the wider regional balance if the ceasefire unravels.