Complex sentence: El Hafir line, these posts consisting of well-dug trenches, were located at Shellal a particularly strongly fortified position, at Weli Sheikh Nuran, at Beersheba, and at Khan Yunis.
Split into simpler sentences: El Hafir line, these posts consisted of well-dug trenches. They were located at Shellal, which was a particularly strongly fortified position, at Weli Sheikh Nuran, at Beersheba, and at Khan Yunis.