Donald Trump got "rolled" by Turkish President Recep Tayyip Erdogan, a National Security Council source with direct knowledge of the discussions told Newsweek.
In a scheduled phone call on Sunday afternoon between President Trump and President Erdogan, Trump said he would withdraw U.S. forces from northern Syria. The phone call was scheduled after Turkey announced it was planning to invade Syria, and hours after Erdogan reinforced his army units at the Syrian-Turkish border and issued his strongest threat to launch a military incursion, according to the National Security Council official to whom Newsweek spoke on condition of anonymity.
The U.S. withdrawal plays into the hands of the Islamic State group, Damascus and Moscow, and the announcement left Trump's own Defense Department "completely stunned," said Pentagon officials. Turkey, like the United States, wants regime change in Syria. Russia and Iran support the Assad regime.
"President Trump was definitely out-negotiated and only endorsed the troop withdraw to make it look like we are getting something—but we are not getting something," the National Security Council source told Newsweek. "The U.S. national security has entered a state of increased danger for decades to come because the president has no spine and that's the bottom line."
Newsweek granted the National Security Council official anonymity because they were not authorized to discuss the matter publicly. The source said it would not be surprising to see a Turkish incursion in the next 24 to 96 hours.