Feb 13 (Reuters) - A U.S.-backed ceasefire agreement in northeastern Syria leaves thorny questions unresolved, as Kurds seek to retain some authority despite a much weakened hand following the rapid advance of central government forces.
The progress of the deal tests the ability of Syria's new leaders to stabilise a nation fractured by 14 years of war, following several bouts of violence pitting it against minority groups who are suspicious of the Islamist-led government.
