The United States and NATO have dismissed Russia’s list of demands to resolve the ongoing military crisis over Ukraine, but on Wednesday offered Moscow the opportunity for further discussions on arms control and missile deployments. It was the latest in diplomatic tensions triggered by Russia’s months-long positioning of 100,000 troops along its border with Ukraine, which has stoked widespread fears of war. “There is a real risk for new armed conflict in Europe,” NATO Secretary General Jens Stoltenberg told reporters after a four-hour meeting between the U.S., Russia, and all 30 NATO members.