The US Impact on the Iran-Russia Integration and Disintegration

Relations between Iran and the Russian Federation in the contemporary have been under the in Fluence of international system, especially by the great powers of the system; so that relations between the two countries after the collapse of the Soviet Union, Regardless of the United States is not possible. Although some argue that America has no effect on relation between Tehran and Moscow defined on the basis of geographical factories and bilateral cooperation. But from the perspective of others America has decisive role in Iran and Russia relations but historical record show that united states wants reduction and destruction this relationship. however; this article wants analyses the subject above and answering this fundamental question that “what is the America’s role in the convergence and divergence between Iran and Russia?"Have an important role in relations between Iran and Russia. America’s action sometimes is causes converge and diverge between Tehran and Moscow.