In 2015, Iran proved the peaceful nature of its nuclear program to the world by signing the multilateral nuclear agreement, formally known as the Joint Comprehensive Plan of Action (JCPOA) — with six world powers.
However, Washington’s unilateral withdrawal in 2018 and its subsequent re-imposition of sanctions against Tehran left the future of the deal in limbo.
In 2019, Iran started to roll back the limits it had accepted under the JCPOA after the other parties failed to live up to their commitments.