(Reuters) - Islamic State commanders are liable for war crimes on a "massive scale" in northeast Syria , where they spread terror by beheading, stoning and shooting civilians and captured fighters, U.N. investigators said on Friday. Their report, based on over 300 interviews...

(Reuters) - The top U.S. military officer, General Martin Dempsey, arrived on Saturday in Baghdad on an unannounced visit to meet U.S. commanders preparing to expand American assistance to Iraqi and Kurdish forces battling Islamic State militants. It was Dempsey’s first...

(Reuters) - Egypt's most dangerous militant group on Friday posted its first video message since pledging allegiance to Islamic State, with footage purporting to show that the group was behind one of the most deadly attacks on Egyptian security forces in years. The nearly...

  The U.N.’s “action plan” to call a temporary halt to the violence in Syria will only work to strengthen the Assad regime, an opposition leader said on Friday to Anadolu Agency. In an exclusive interview with the Turkish news agency,   the defense minister of the...