US–Iran Ceasefire Expires; Vance and Witkoff Fly to Islamabad as Iran Delegation Arrives

The 14-day US–Iran ceasefire, brokered by Pakistan and agreed on April 7–8, 2026, expires on the evening of April 21. VP JD Vance and Special Envoy Steve Witkoff depart Washington for Islamabad for a second round of talks, despite Iran having publicly declared on April 20 it had 'no plans' to attend. In a last-minute reversal, Iranian sources confirmed to CNN that an Iranian delegation did arrive in Pakistan — raising cautious hopes that talks could resume. President Trump sharply raised the stakes, stating he was 'ready to go back to war' and expected to resume military operations if no agreement was reached. Key unresolved sticking points include the US demand that Iran freeze uranium enrichment and surrender its highly enriched uranium stockpile, and Iran's demand for an end to the US naval blockade and guarantees concerning Hezbollah. The US seizure of an Iranian-flagged cargo vessel in the Strait of Hormuz over the previous weekend had further complicated the diplomatic atmosphere. China's President Xi Jinping had called Saudi Crown Prince MBS on April 20 urging an 'immediate and comprehensive ceasefire,' highlighting broad international pressure on both parties. The episode illustrates the structural paradox of coercive diplomacy: threats capable of bringing parties to the table can simultaneously foreclose the trust necessary for agreement.