The threat of a surprise invasion by Israel’s neighbours has loomed larger here since the 7 October Hamas attacks.
“Will [the trenches] stop what happened on 7 October? Yes,” said Bernard Lee. “Could you get a pick-up truck over it? No.”
But the defences being built along this frontier don’t address the more immediate threat from drones and missiles regularly launched by Iranian militia groups in Syria and Iraq – and frequently shot down by Israeli forces.
Nor do they address Israel’s concerns about Syria being an “oxygen line” for Iran to smuggle weapons to its Lebanese ally, Hezbollah.
Mr Lee said commercial smugglers already used the AoS to smuggle cigarettes and electronics between Syria and Lebanon. And that a new patrol road, built by the UN, is assisting them.
“They come over the mountain, enter the area of separation with a trail of pack horses, eight at a time, with two armed guys,” he said. “They unload the pack horses and a pick-up truck meets them at our road: we’ve motorized the smuggling business.”
Asked whether the same route could be used to take weapons from Syria into Lebanon, he replied: “That is what the IDF are concerned about.”