High-stakes peace talks in Islamabad have concluded without a breakthrough, as the United States and Iran remain deeply divided over nuclear enrichment and the reopening of the Strait of Hormuz. Despite a fragile two-week ceasefire, negotiations led by U.S. Vice President J.D. Vance and Iranian Parliament Speaker Mohammad-Bagher Ghalibaf hit a wall on Sunday. Washington’s “15-point proposal” demanded that Tehran dismantle its nuclear facilities and relinquish its entire stockpile of highly enriched uranium. In response, Iran’s “10-point plan” countered with a demand for the recognition of its right to uranium enrichment and the immediate lifting of all primary and secondary sanctions .
The maritime crisis further complicated the dialogue. While the U.S. insisted on the immediate, unconditional opening of the Strait of Hormuz to restore global oil flow, Tehran sought to formalize its “protection” of the waterway, including the collection of transit tolls. Following the stalemate, President Trump announced via social media that the U.S. Navy would begin a blockade of all Iranian ports and interdict any vessel paying tolls to Tehran, calling Iran’s nuclear ambitions the “single most important issues .
Efforts to transition the temporary ceasefire into a permanent settlement are now in jeopardy. Iranian officials have conditioned further talks on a cessation of Israeli strikes in Lebanon, a demand the U.S. delegation characterized as a “misunderstanding” of the ceasefire’s scope. As both nations maintain rigid red lines, the risk of a return to active hostilities looms. For now, the “ball is in the Iranian court,” according to Vice President Vance, as the international community watches to see if diplomatic channels can survive this latest escalation.
