RAQQA, SYRIA — Islamic State has reportedly increased the use of drones to attack U.S. troops located in Raqqa, Syria, promoting the Pentagon to consider adding anti-drone equipment to the troops based there. <br /> <br />It has been reported by Defense One that ISIS fighters have turned recreational drones into weapons by attaching artillery shells to them and using improvised switches to release the shells. <br /> <br />According to the Washington Post, U.S. troops usually fight alongside the Syrian Democratic Forces. ISIS reportedly waits for the SDF to send up a drone before launching their own explosives-laden ones, in order to disguise it as a friendly drone. These drones are said to be able to release small 40 mm grenade-sized munitions with a relatively high degree of accuracy. <br /> <br />The Pentagon did not disclose what type of anti-drone equipment that might be used for troops in Syria if they do decide to increase defense in this regard. U.S. troops are already equipped with Anti-Unmanned Aerial Vehicle Device, or known as AUDS in Mosul, Iraq.