"The Russian side stressed that Iran firmly implements its JCPOA obligations, that is regularly confirmed by the IAEA. Russia and Iran stressed the importance of maintaining of the agreement and noted the effectiveness of this mechanism in terms of ensuring international and regional security, as well as the nuclear non-proliferation regime. It was stressed that the guarantee of a sustainable and successful implementation of the JCPOA in the long-term perspective is the fulfillment of its obligations by all the participants and the parties involved," the statement said.
In July 2015, Iran and the P5+1 group of countries, namely China, France, Russia, the United Kingdom, the United States and Germany, signed the JCPOA. The nuclear deal stipulated a gradual lifting of the economic and diplomatic sanctions previously imposed on Iran in exchange for Tehran maintaining the strictly peaceful nature of its nuclear program. The plan’s implementation began in January 2016.
US President Donald Trump's tough stance on Iran, however, differs from the position held by his predecessor Barack Obama, who actively promoted signing the deal. Trump believes that the Iran nuclear deal has been ineffective and, therefore, must be revised.