Iran is a lesson to all: as soon as Israel or the US take a disliking to you you have to rush for nuclear weapons.

Iran has been the grown up in the room for well over a decade at this stage and it didn't matter one bit. You cannot appease Israel or the US because that don't want to be appeased, they want to bomb Iran into a lawless wasteland. They could have switched to a secular liberal democracy and it'd make no difference.