India, April 12 -- A fresh diplomatic push to de-escalate tensions in West Asia appears to have faltered, with JD Vance confirming that marathon negotiations with Iran yielded no breakthrough, even as the fragile ceasefire in the region teeters on the brink.

Speaking after nearly 21 hours of talks held in Pakistan, Vance stated that Tehran had declined to accept key American conditions. "We came in good faith to secure a deal, but there has been no headway," he said, underlining Washington's demand for a clear and binding commitment from Iran to abandon any future pursuit of nuclear weapons.

According to Vance, while recent military actions have significantly degraded Iran's nuclear infrastructure-including enrichment facilities-the abs...