Complex sentence: A later patrol penetrated to the Tebaga Gap, proved the route was practicable and demonstrated the weakness of the Axis defences by going further north to Gafsa and on 2 February, making contact with the First Army which was advancing from the west.
Split into simpler sentences: A later patrol penetrated to the Tebaga Gap, proved the route was practicable. The patrol demonstrated the weakness of the Axis defences, by going further north to Gafsa and on 2 February, made contact with the First Army which was advancing from the west.