RAQQA, Syria (Reuters) - The morning after Islamic State’s defeat in Raqqa, a local militia fighter stood in a square in the ruined, deserted city center. “There will be more problems here,” he said. The 19-year-old, who gave his name as Moro, was one of few Raqqa natives to witness the aftermath of the battle for the Syrian city. Victory celebrations by Kurdish forces felt muted - there were no civilians left. It was the “liberation” of a ghost town.