US-Iran Peace Talks Collapse in Islamabad, Leaving Strait of Hormuz in Crisis

The most significant diplomatic attempt to end the six-week war between the United States and Iran ended in failure early Sunday, after a 21-hour marathon session in Islamabad failed to produce even a framework accord. Vice President JD Vance, leading the American delegation, told reporters at the Serena Hotel that Iran had "chosen not to accept our terms," adding that the lack of a deal was "bad news for Iran much more than it's bad news for the United States of America." [A3] The remarks came just before he boarded Air Force Two for Washington, leaving behind an unresolved crisis that has roiled global energy markets and kept the strategic Strait of Hormuz blocked by Iranian-laid mines, which U.S. naval destroyers have now begun to clear. [A17]

The talks, mediated by Pakistan, marked the highest-level direct engagement between Washington and Tehran since the 1979 Islamic Revolution and the hostage crisis that severed relations. [A9] The U.S. side was uncompromising on what Vance described as a "red line": a verifiable, long-term Iranian commitment not to weaponise its nuclear programme. "We need to see an affirmative commitment that they will not seek a nuclear weapon, and they will not seek the tools that would enable them to quickly achieve a nuclear weapon," he said, calling the American position a "best and final offer." [A22] Iranian officials, however, insisted the breakdown was due to "excessive demands" from Washington and linked any reopening of Hormuz to a "reasonable agreement" that would include the release of billions in frozen Iranian assets and compensation for war damage. [A12][A21]

Viewed from European capitals and Canberra, the impasse was met with deep unease. Australia's foreign minister, Penny Wong, described the outcome as "disappointing" and urged both sides to maintain the fragile Tuesday ceasefire and return to negotiations quickly. [A7] European diplomats similarly warned that any escalation would impose an intolerable human cost and further shock the global economy already reeling from energy supply disruptions. The picture was further complicated by the actions of Israel, which intensified its bombing campaign against Hezbollah in Lebanon even as the ceasefire nominally took hold, leading some analysts in London to conclude that Prime Minister Netanyahu is actively trying to sabotage a U.S.–Iran détente. [A23]

The immediate future looks bleak. Although Iran's foreign ministry stated that "diplomacy never ends," a source close to the Revolutionary Guards told Fars news agency that Iran was in no hurry to restart talks unless Washington moderated its stance. [A14] The U.S., meanwhile, proceeded with mine-clearance operations in the Gulf, with President Trump warning that all of Iran's mine-laying vessels had been destroyed. [A17] With the Strait of Hormuz still effectively closed to safe commercial transit, the conflict has already begun to test the resilience of global supply chains and force Asian importers to consider costly alternative routes. Unless a second round of negotiations proves more flexible, the world may have to brace for a protracted stalemate in which neither side can afford to blink first.