Last Wednesday Trump announced that the US would withdraw its troops from Syria, following an October 14 phone call with President Recep Tayyip Erdoğan in which the two leaders agreed on the need for more effective coordination over the war-torn country.
The US president's comment comes after, on Wednesday, he announced that the United States would withdraw its roughly 2,000 troops from Syria since the Daesh* terror group had been defeated.
Turkish-backed Syrian fighters have sent reinforcements to the front line along the northern Syrian areas controlled by Kurdish fighters, Turkey's state-run Anadolu Agency reported on Monday, days after Washington took an unexpected decision to withdraw troops from the war-torn country.
The two leaders reportedly agree to coordinate to prevent an authority vacuum from developing as the withdrawal process begins.
The Syrian Observatory for Human Rights said the reinforcements were sent to the front line with Manbij, where USA troops have been based.
Erdogan said he'd "provide all kinds of support to the United States, its North Atlantic Treaty Organisation ally" in the anti-terrorism campaign in Syria, according to a readout of the call published by Turkey.
He said he would bring forward his departure from February due to the change in Syria policy. "Mattis understood this", Macron said during a trip to Chad.
Turkey has openly expressed an interest in attacking Kurdish forces in Syria, and Erdogan has previously threatened U.S. troops who were on the ground supporting the local fighters.
Erdogan said December 21 that "this is certainly not an open-ended waiting process", referring to his decision to refrain from an attack on the YPG. "An ally should be reliable, co-ordinate with other allies".
Reports have suggested US forces will leave within 60 to 100 days.
Mr McGurk said he could not support Mr Trump's Syria decision, saying it "left our coalition partners confused and our fighting partners bewildered".
After Trump's decision, Erdogan said he would delay the eastern Syria offensive and would work on plans to clear out ISIS from the region.
The Turkish president also wished a happy new year to the USA president and American people.
Turkey will not leave Syrian Kurds at the mercy of the terrorist PKK/PYD, as it didn't leave the Arabs to the hands of the Daesh terror group, he said.