From Vienna to Tehran: The Road to War (2015-2026)

This timeline traces the key events from the signing of the JCPOA in July 2015 to the outbreak of the Iran war on February 28, 2026. Blue markers indicate diplomatic milestones. Red markers highlight escalation steps taken after the US withdrawal. The US withdrawal from the JCPOA in May 2018 marks the decisive turning point. From that moment, Iran began systematically suspending its nuclear commitments.