The fragile ceasefire between the United States and Iran is nearing its expiry, casting doubt on the planned negotiations in Islamabad. US President Donald Trump announced a delegation led by Vice President JD Vance, but Iran has stated it will not participate unless the US lifts its naval blockade, which it considers a violation of the ceasefire. This blockade has become a major sticking point, with Iran framing it as an obstacle to meaningful dialogue. Competing accusations of ceasefire violations have further strained relations, with both sides viewing their actions defensively. Miscommunication and premature public announcements have also contributed to the breakdown in talks, deepening mistrust. Key issues, including Iran's nuclear program and sanctions relief, remain unresolved, with Iran demanding access to approximately $20 billion in frozen assets. As the ceasefire deadline approaches, both sides are preparing for potential escalation, with Trump warning of military action if negotiations fail. Despite acknowledging some progress, both parties recognize that significant gaps remain, and the upcoming talks may be the last chance for diplomacy.