
Vance and U.S. negotiators departed Islamabad after failing to reach a peace agreement with Iran, marking the end of direct weekend talks without a ceasefire. The situation escalated when Iran refused to commit to further talks amid an internal dispute over a U.S. naval blockade, putting Vance's Pakistan trip on hold; a U.S. blockade announcement on the Strait of Hormuz followed the breakdown, increasing market and energy risks and regional uncertainty.
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