Vance warns Iran not to 'play' the US as he departs for negotiations aimed at ending their war - AP

US Secretary of State Antony Blinken and Defense Secretary Lloyd Austin will join the meeting. Iran's Foreign Minister, Javad Zarif, will lead Iran's delegation to the negotiations. Iran and the US have been at odds over nuclear issues. Iran's nuclear program and Iran's ballistic missile program have been major points of contention.