Complex sentence: Abu Tellul was a strategically important ridge located near the west bank of the Jordan river which, together with another ridge to the north called Musallabeh, formed a salient in the British defensive line in the Jordan valley.
Split into simpler sentences: Abu Tellul was a strategically important ridge located near the west bank of the Jordan river. Together with another ridge to the north called Musallabeh, it formed a salient in the British defensive line in the Jordan valley.