New York TimesWarning of ISIS Plots Against West, US Plans Assault on RaqqaNew York TimesFighters on parade in 2014 in Raqqa Province in Syria. The city of Raqqa serves as the Islamic State's de facto capital. Credit Reuters. WASHINGTON — The fight to retake Raqqa, the Syrian city that serves as the capital of the Islamic State, must ...Worldview: Turks, Kurds at odds on RaqqaPhilly.comRaqqa Fight Starting 'Soon,' Isolation Operation to Include YPGVoice of AmericaU.S.