Iran was thoroughly Westernized during the reign of the last Shah and Iran remains a sophisticated state adept at communicating with other cultures and fooling their diplomats. For example, did Iranian diplomats astonishingly succeed years ago in convincing Chinese diplomats that Iran ostensibly does not intend to destroy Israel despite constantly declaring the intention to do so.
There are 1.9 billion Muslims in the world and the Khomeinist vision is the to create an Islamist Superstate under the leadership of Tehran as encompassing the entire Islamdom. Such a totalitarian theocratic state would be the world’s only superpower, the world’s hegemon. Shah Ismail I (1487-1524), the founder of the Safavid Empire forcibly converted his subjects to Twelver Shia Islam in thus turning Iran into a Shia country. Does Iran intend to repeat this elsewhere in the Muslim world? No doubt so. Not only does Tehran seek political hegemony in Islamdom but Iran also seeks religious hegemony in Islamdom for its own form of Islam. Sunni Muslims should be aware.
Western powers are generally interested in seeking coexistence with Islam and Islamdom. The Iranian leadership laughs at such ridiculous ambitions. For them is it solely a matter of domination and hegemony. There can be religious coexistence but solely under Twelver Shia Islamist sharia rule.
As the JCPOA nears effective expiry need the P5+1 powers reassess their policies towards the Khomeinist regime as the Iranian crocodile ultimately intends to devour them all.