Kurdish-led SDF closing in on Raqqa U.S.-backed Syrian Democratic Forces (SDF) are continuing to advance on the city of Raqqa, where some 3,000 to 4,000 militants from so-called Islamic State are thought to be holed up in their Syrian headquarters Syrian army and allies Turkish army and allies SDF (Kurdish and Arab militia) So-called Islamic State Front line on Nov 5 Tabqa Dam captured May 10 Tabqa airbase Mar 26 Mar 6 May 15 Kobane Ain Issa Tal Saman Tabqa Baath Dam Raqqa Thawrah oilfield River Euphrates Lake Assad Maskanah Jarabulus Manbij TURKEY SYRIA LEBANON JORDAN 20km 12 miles TURKEY SYRIA Damascus IRAQ 120 miles 200km Sources: Twitter, wire agencies