US special operators, artillery, gunships support Raqqa offensive

SUMMARY
United States Special Forces have been deployed on several fronts around the Syrian city of al-Raqqa, supporting the offensive of the Kurdish militias and other allied factions laying siege to the city, according to a British war monitor.
US troops are deployed to the north, east, and west of al-Raqqa, considered the capital of the caliphate of the Islamic State, and includes US special ops units, US Marines artillery (155mm/M-777's), and US Apache helicopter gunships supporting the advance of the Syrian Democratic Forces, the Kurdish-led armed alliance that launched an offensive to retake the city, according to the UK's Syrian Observatory for Human Rights.
The US-led coalition's aircraft are also providing the Kurdish fighters with intensive air support.
Currently, there are clashes between the SDF and the US Special Forces on one side against IS, on the other, at the former base of Division 17, North of al-Raqqa; also on the outskirts of the Haraqala area and around the neighborhood of al-Jazra in the West.
SOHR said the SDF controls 70 percent of the al-Meshlab area, on the eastern side of al-Raqqa, where progress is being hampered by IS snipers and mines, although the Kurdish militia stated on Wednesday it completely controlled the area.
There are no civilians left in this district since they were evacuated days ago by the radical fighters, who have dug trenches and tunnels to defend the area, the NGO said.
For their part, the SDF reported in their Telegram account that they have managed to break into the neighborhood of al-Jazra in the western part of al-Raqqa.
On June 5th, this force launched an offensive on the city.
This offensive comes on the third anniversary of the proclamation of its caliphate on June 29, 2014, by IS in Syria and Iraq.
Currently, there are some 500 US troops deployed in Syria.