Syria is awash in weapons and an array of local militias and thousands of foreign troops, some of which may not leave.
Trump told Turkey's President Erdogan that he'd "given clear instructions" that the Kurds will receive no more weapons.
The incident happened during a NATO military exercise in Norway and resulted in Turkey withdrawing its 40 troops last week.
The incidents took place during NATO's "Trident Javelin" exercise in the southern Norwegian city of Stavanger.
Turkey risks restrictions on its continued participation in NATO's mutual air defense system by going ahead with the estimate...