Addressing the opening session of the 2017 EU Ambassadors Conference in Brussels on Monday, Federica Mogherini said the deal, officially called the Joint Comprehensive Plan of Action (JCPOA), represents “the European way to foreign policy.”

“This was not an agreement between two countries, I have repeated it time and again and I have the impression that we will need to repeat it time and again in the months to come,” she added, apparently referring to the stepped-up American rhetoric and action against the deal.

US President Donald Trump has called the JCPOA — which was negotiated under his predecessor, Barack Obama — “the worst deal ever” and repeatedly threatened to tear it up.

The deal was reached between Iran and the P5+1 countries — namely the US, Russia, China, France, Britain, and Germany — in July 2015 and took effect in January 2016.

Recent reports indicate that the Trump administration is actively seeking a pretext to potentially withdraw from the JCPOA. Among other things, the White House has reportedly been pressuring US intelligence officials to produce intelligence that could be used to declare Iran in violation of the nuclear agreement.