Successive U.S. governments have ripped international law to shreds; ditching the Joint Comprehensive Plan of Action is only the latest instance. It doesn’t matter that Tehran has fulfilled all its commitments to the deal — according to UN inspectors. Once the leadership in Tehran concluded that the U.S. sanctions tsunami is fiercer than ever, it decided to begin partially withdrawing from the deal.

President Hassan Rouhani was adamant: Iran has not left the JCPOA — yet. Tehran’s measures are legal under the framework of articles 26 and 36 of the JCPOA — and European officials were informed in advance. But it’s clear the EU3 (Germany, France, Britain), who have always insisted on their vocal support for the JCPOA, must work seriously to alleviate the U.S.-provoked economic disaster to Iran if Tehran has any incentive to continue to abide by the agreement.

Russia and China — the pillars of Eurasia integration, to which Iran adheres — support Tehran’s position. This was discussed extensively in Moscow by Sergey Lavrov and Iran’s Javad Zarif, perhaps the world’s top two foreign ministers.

At the same time, it’s politically naïve to believe the Europeans will suddenly grow a backbone.

The comfortable assumption in Berlin, Paris and London was that Tehran could not afford to leave the JCPOA even if it was not receiving any of the economic rewards promised in 2015. Yet now the EU3 are facing the hour of truth.