Kurd commander claims Abu Hassan al-Muhajir died in joint coordinated operation with US military

Turkey also says it coordinated with American military ahead of Syria operation, which is said to have caused death of leader of Islamic State terror group

Warning comes after Turkish leader reached agreement with Putin for removal of Syrian Kurdish fighters in area; also repeats threat to send refugees to Europe

Experts doubtful whether new plans to secure oil fields amid troop withdrawal are realistic, or even legal

Turkey and Kurdish-led SDF also fighting despite truce; clashes underscore risk of spiraling violence as multiple armies jostle for position in volatile border region

Invoking past persecution of Jews, member of Syrian Democratic Forces expresses confidence the Jewish state will not neglect Syrian Kurds' plight

Pullout from Ras al-Ain comes as US troops leave their largest base in north of country; Trump tweets ceasefire 'holding up very nicely'

Two days before ceasefire with Turkey expires, troops leave Sarrin base on edge of proposed 'safe zone'

Turkey says it wants to resettle two million refugees in area after it is evacuated by the Kurds

Kurdish forces accuse Turkey of attacking its fighters, civilians despite US-brokered agreement to halt operation to allow Kurds to withdraw