European nuclear diplomacy with Iran has always had a transatlantic dimension at its core. Facilitating US-Iranian engagement is instrumental in securing European long-term interests in the support of a non-proliferation regime and the prevention of a major military confrontation in the Gulf.

European nuclear diplomacy with Iran has always had a transatlantic dimension at its core. The US and its allies and partners are negotiating the re-activation of the JCPOA, the Iran nuclear deal that the US unilaterally left in 2018. Between 2003 and 2015, the Europeans played a role in facilitating US-Iran nuclear diplomacy and the agreement itself.