Big deal. All countries do things in their own best interest. The United States demands that sanctions be kept on Russia by the EU and the West. Yet they don't have a problem with buying the RD-180 rocket engine built by the Russians to power the Atlas V launch vehicle. Congress had originally banned the purchase of the RD-180 engine in 2014. In December 2015, Congress quietly reversed itself when it became apparent that National Security and NASA missions would be threatened. Days afterward, ULA placed an order for 20 more engines.