UNITED NATIONS (Sputnik) - The United States and its allies will become direct participants in the conflict against Russia if they let Ukrainian forces strike deep into Russian territory with Western-supplied weapons, Russian Deputy Foreign Minister Sergey Vershinin told Sputnik. "We have already repeatedly given an assessment of this scenario. The assessment of this scenario was given by the president of Russia. It is clear that in this case it will be confirmed that the US and its allies are becoming direct participants in military actions against Russia, which is a nuclear power," Vershinin said on the sidelines of the UN General Assembly in New York.