USA have the opportunity of cooperating with Russia despite differences, said on Sunday authorized the White house Josh Ernest. "The U.S. made it clear that we have a fairly complicated relationship with Russia that, despite substantial differences in relation to the destabilizing actions of Russia in Ukraine, we can cooperate on a number of issues that are important to the state of security in both our countries. This is true in regard to the removal of Syria's declared stockpile of weapons of mass destruction. This is true in regard to negotiations with Iran and prevent it from obtaining a nuclear weapon, " said Ernest. "Russia has made a valuable and constructive contribution to this effort," concluded the Commissioner of the White house. Western countries since March 2014 several times already imposed penalties because Russia's position on Ukraine. The last case of the use of such practices were the limits imposed in March 2015, when expanded sanctions List of the USA. The list of Russian citizens and organizations who have fallen under the punishment - in the material of the Fins news