https://www.gatestoneinstitute.org/14066/iran-ventriloquist-dummy
Russia has imposed the Caspian Convention it dictated, but vetoes Iran’s membership in the Euro-Asian “economic family” and the Shanghai Group. Russia’s interest is keeping Iran out of the international gas market, thus holding Moscow’s Damocles Sword above the EU’s head.
As for Turkey, its chief interest in the Islamic Republic is to secure support for killing Kurds, something that runs counter to Iran’s own national interests.
As long as the Islamic Republic believes that it can do whatever it likes without risking any punishment it would make little difference through which dummy the ventriloquist utters his text.
Though it is too early to assess the impact of President Donald Trump’s decision to harden US policy towards the Islamic Republic of Iran, one thing is already clear. Trump’s rhetoric and the reactivation of sanctions suspended by President Barack Obama, plus new measures against the Islamic Revolutionary Guard Corps (IRGC) are making it harder for the leadership in Tehran to pursue its forked-tongue diplomacy designed to hoodwink bleeding heart liberals in the West while fanning the fires of hatred in the global anti-West constituency.