AABRA, Lebanon — Mayada El Sayed, duct tape wrapped around her fingers to prevent bruising, efficiently strips ripe olives from a tree, seemingly undeterred by the ever-present threat of bombs.

El Sayed, 45, said she was scared by the regular strikes — one of which was less than half a mile from Bustan El Zeitoun grove where she was working, a few miles inland from Lebanon’s Mediterranean coast and a 45-minute drive south of the capital, Beirut  — as Israel pushes into the…