Iran is a strategic ally Russia cannot afford to lose, he said, adding that Moscow would likely do everything possible to prevent such an outcome.
Russia will do nothing, just like they did with Venezuela, and are doing with Cuba.All they'll do is complain about it, but they don't have any real power to do anything.In Syria they actually tried, but they were hopelessly ineffective.

















Yes unfortunately they did, but they failed to protect the Syrian regime, despite the massive strategic importance for Russia of their bases there, that were also a gateway to much of their influence in Africa.So they tried and failed.