Pakistan, June 21 -- US Vice President JD Vance arrived in Switzerland on Sunday to participate in high-level peace negotiations with Iran, as both countries seek to turn a recently agreed ceasefire into a lasting settlement. The talks follow an interim agreement signed earlier this week and are expected to focus on reducing tensions, addressing nuclear concerns, and creating a framework for broader regional stability after nearly four months of conflict.

However, uncertainty surrounding the Strait of Hormuz has emerged as a major challenge ahead of the negotiations. Iran's Islamic Revolutionary Guard Corps announced that the strategic waterway had been closed, while US military officials stated that commercial shipping continued without...