Complex sentence: The Byzantines launched their attack in the winter months, catching the Arabs off guard, capturing Anazarbus in Cilicia, and following a deliberate policy of devastation and massacre to drive the Muslim population away.
Split into simpler sentences: The Byzantines launched their attack in the winter months, catching the Arabs off guard. They captured Anazarbus in Cilicia, and followed a deliberate policy of devastation and massacre to drive the Muslim population away.