Russia is responsible for 'hot war' in Ukraine: US envoy

The new US special envoy on Ukraine said Sunday that Russia is responsible for the "hot war" in the country's east, after fresh clashes between government forces and Russian-backed rebels.Kurt Volker, who was appointed this month as the State Department's special representative for negotiations to end more than three years of fighting, was visiting on the eve of telephone talks between the leaders of Ukraine, Russia, Germany and France on how to stem a conflict that has claimed 10,000 lives."Thi