Excessive demands, mistrust: What led to US-Iran talks collapse

US-Iran talks collapsed after 21 hours in Islamabad amid sharp disagreements over nuclear commitments, sanctions relief, and control of the Strait of Hormuz. Tehran blamed Washington's "excessive demands", while the US cited Iran's refusal to guarantee it wouldn't pursue nuclear weapons. Deep-rooted mistrust, conflicting war goals, and rigid positions derailed the high-stakes negotiations.