One of main challenges facing Iran and Russia is the constant US pressure on both sides. In the Iranian society there is a big concern about the future of JCPOA, said Davud Kiani, Deputy Head of the Institute for Iranian and Eurasian Studies (IRAS), on the sidelines of the Russian-Iranian dialogue.
Many question what will happen if Trump will drop away the nuclear deal. In this situation Iran will have two options: following it or exit from it. Both options will have a catastrophic effect for Iran. If Iran tries to keep the JCPOA afloat, the opposition would consider it as a ruined international credibility of Iran. It would be considered as confirmation of Iran flexibility toward the United States.
If Iran abandons the JCPOA, it will be confronted with a new political pressure from the international society and new round of sanctions against Iran.
As to the American actions against Russia, Iran is afraid that this can bring Russia to a position to make a deal with the USA, including such issues as Syria, the Middle East and Iran.