A main road in the provincial capital of Quneitra in southern Syria was blocked with mounds of dirt, fallen palm trees and a metal pole that appeared to have once been a traffic light. On the other side of the barriers, an Israeli tank could be seen maneuvering in the middle of the street.

Israeli forces entered the area — which lies in a U.N.-patrolled buffer zone in the Golan Heights that was established by a 1974 ceasefire agreement between Syria and Israel — soon after the fall of President Bashar Assad last month in the country’s 13-year civil war.

Residents of Quneitra, a seemingly serene bucolic expanse of small villages and olive groves, said they are frustrated, both by the Israeli advances and by the lack of action from Syria’s new authorities and the international community.