(REUTERS)  U.S.-led coalition air strikes reportedly killed dozens of Syrian soldiers on Saturday, endangering a U.S.-Russian brokered ceasefire and prompting an emergency U.N. Security Council meeting as tensions between Moscow and Washington escalated. The United States military said the coalition stopped the attacks against what it had believed to be Islamic State positions in northeast Syria after Russia informed it that Syrian military personnel and vehicles may have been hit. The United States relayed […]