Ceasefire halts Syria-Lebanon border fight against Islamic State

By Ellen FrancisBEIRUT (Reuters) - A ceasefire took effect on Sunday in an Islamic State enclave straddling the Syria-Lebanon border, where the militants have been fighting the Lebanese army on one front and Hezbollah with Syrian troops on the other.The Lebanese army announced that a ceasefire in its own offensive took effect at 7:00 a.m (12 a.m. ET) but did not mention Syria's side of the frontier.Hezbollah and the Syrian army declared a ceasefire in their attack against Islamic State in Syria'