Iran has refused to negotiate under threats from the United States, raising fresh uncertainty over crucial talks in Islamabad. Tehran insists it will not sign any deal under pressure, even as Donald Trump warns of military action if no agreement is reached. With the ceasefire deadline fast approaching, tensions remain high. Key sticking points include the Strait of Hormuz and Iran’s nuclear programme. While both sides may still attend talks, the path to a breakthrough appears increasingly difficult and uncertain.