The Syrian army deployed forces near Manbij in northern Syria on Friday, a war monitor and a U.S. official said, after the Kurdish YPG militia urged Damascus to protect the town, where U.S. forces operate, from the threat of a Turkish offensive.
Manbij, which U.S.-backed forces captured from Islamic State in 2016, has emerged as a focal point of new tensions after U.S. President Donald Trump's decision to withdraw U.S. forces whose presence has effectively deterred Turkey.
After a Syrian army announcement declaring government troops had entered Manbij, Turkey-backed Syrian rebels stationed in nearby territory said they had begun moving together with Turkish forces towards the town in readiness for "the start of military operations to liberate" it.
A witness said convoys of Turkey-backed insurgents, with armoured vehicles and machine guns, were moving towards the frontline with the town. The Syrian Observatory for Human Rights, a UK-based monitoring group, said the Syrian government forces had entered a strip of territory at the edge of Manbij, not inside the town itself, creating a barrier with Turkey-backed fighters nearby.
Manbij, where U.S. troops have a military base, is held by a local militia allied to the YPG which Turkey deems a security threat. A U.S. official, speaking on the condition of anonymity, told Reuters that U.S. troops had not changed their positions in Manbij and dozens still remained. The official said they had not seen Syrian military forces inside Manbij but rather on the outskirts of the city.
The U.S.-led coalition against Islamic State said that "despite incorrect information about changes to military forces in the city of Manbij, Syria, (the coalition) has seen no indication that these claims are true". Turkish President Tayyip Erdogan, who has vowed to crush the YPG, said Turkish officials would visit Russia - Assad's most powerful ally - on Saturday and discuss Syria. He indicated Turkey was not in a hurry to launch an offensive.