U.S.-backed Syrian Democratic Forces reinforce front lines in Raqqa

The U.S.-backed Syrian Democratic Forces (SDF) deployed around a thousand additional fighters to the front lines with Islamic State in Raqqa on Sunday, the SDF media office said.The fighters were sent to the east and west of the city, Islamic State's de facto capital in Syria.The SDF launched its U.S.-backed assault to capture Raqqa last month.