According to the US special envoy for Ukraine, the US is trying to keep risks down and prevent the conflict from expandingNEW YORK, June 3. /TASS/. Ukraine’s recent strikes on Russian military airfields sharply raised the level of risk in the Ukraine conflict, said US special envoy for Ukraine, Keith Kellogg. "I'm telling you, the risk levels are going way up," he said on Fox News. "People have to understand, in the national security space, when you attack an opponent's part of their national survival system, which is their triad, the nuclear triad, that means your risk level goes up...