A historic diplomatic marathon between the United States and Iran has concluded without agreement, leaving a fragile ceasefire and the world's economic stability hanging in the balance.
Twenty-one hours of intense negotiations in Islamabad failed to bridge decades of hostility, with both sides departing without a breakthrough on critical issues including Iran's nuclear program and control of the strategically vital Strait of Hormuz.
US Vice-President JD Vance declared at dawn that American negotiators had presented their "final and best offer," emphasizing the core US demand for "an affirmative commitment that [Iran] will not seek a nuclear weapon and they will not seek the tools that would enable them to quickly achieve a nuclear weapon."
Iran's parliamentary speaker Mohammad Bagher Ghalibaf countered that "the opposing side ultimately failed to gain the trust of the Iranian delegation," while foreign ministry spokesman Esmail Baghaei criticized American "excessive demands and unlawful requests."
"We need to see an affirmative commitment that [Iran] will not seek a nuclear weapon and they will not seek the tools that would enable them to quickly achieve a nuclear weapon."
Despite the impasse, both nations indicated willingness to continue dialogue. Pakistan's Foreign Minister Ishaq Dar urged all parties to maintain the fragile two-week ceasefire that temporarily halted escalating hostilities, including President Trump's alarming threat to destroy what he called a "whole civilisation" in Iran.
The negotiations revealed fundamental obstacles beyond the nuclear issue. Iran has refused repeated demands to reopen the Strait of Hormuz, whose closure has caused global economic shocks by blocking the flow of oil, gas, and essential goods. Meanwhile, Iran's stockpile of uranium enriched to 60%—dangerously close to weapons-grade—remains buried in rubble after last year's US and Israeli airstrikes.
Dr. Sanam Vakil of Chatham House noted a "limited psychological understanding of the adversary and what compromises are needed for a real deal," highlighting the deep chasm of distrust that negotiators failed to overcome.
Both delegations arrived in Islamabad believing they held the upper hand in the ongoing conflict, aware that failure could mean a return to devastating warfare with global consequences. As Pakistani journalist Kamran Yousef observed, this round represented "no breakthrough but no breakdown either."
With the 2015 nuclear agreement taking 18 months of breakthroughs and breakdowns to achieve, and President Trump expressing reluctance toward protracted negotiations, the world now awaits his next move: escalation or renewed diplomacy.