"Today a spokesman for the National Army, a Turkish-backed Syrian rebel force in northwest Syria, claimed up to 15,000 fighters were ready to join Turkish forces against the YPG but that no date had been set. Maj. Youssef Hamoud told Reuters, “The battle will be launched simultaneously from several fronts. It will be in Manbij and Tell Abyad and Ras al-Ain.”

"Today a spokesman for the National Army, a Turkish-backed Syrian rebel force in northwest Syria, claimed up to 15,000 fighters were ready to join Turkish forces against the YPG but that no date had been set. Maj. Youssef Hamoud told Reuters, “The battle will be launched simultaneously from several fronts. It will be in Manbij and Tell Abyad and Ras al-Ain.”

A Western reporter on the ground in northern Syria said there is currently no evidence of Turkish offensive military activity along the border. Wladimir van Wilgenburg, a freelance journalist and researcher who toured the road running the length of Turkey’s border with YPG controlled territory today, including Ras al-Ayn, told Al-Monitor, “I checked the walls from all sides, there is nothing.” Van Wilgenburg was responding to claims that Turkish forces had dismantled parts of a 764-kilometer (475-mile) “security wall” that it completed this summer. Removing blocks would ostensibly facilitate an incursion."

Read more:

https://www.al-monitor.com/pulse/originals/2018/12/pentagon-warns-turkey-against-ypg-operation.html?fbclid=IwAR0aBwpFYdIiUS2pJP1g-Flff8QnbxhIrM1OBAVBmqm39p-qzaI2B6vWOhk#ixzz5ZafVghmD