The Eurasian Triple Alliance.
Moscow and Tehran have strong common interests. Both want to prevent western control of the energy corridors of the Caspian Sea Basin. But the main factor they have in common is that they are both main geo-strategic targets of Washington. Russia, China and Iran are a strategic barrier against American expansionism. This ‘Triple Alliance’ can be seen as the last obstacle against U.S. global hegemony. All three are wary against U.S. and NATO military presence in Afghanistan. An Iran drawn into the U.S. sphere of influence would function as a primary energy corridor for the Caspian Sea Basin. The transformation of Iran into an American client state would threaten both Russia and China. In general support for Iran by Russia and China is underestimated. Both nations refused to cooperate with the latest 2012 unilateral sanctions imposed by Washington.
Credits: Mahdi Darius Nazemroaya [video]