Complex sentence: Although this angered some of the townspeople to the point where the militia requested permission to make a sortie, Leyba refused, and the attackers eventually withdrew and headed north, destroying crops, livestock, and buildings as they went.
Split into simpler sentences: Although this angered some of the townspeople to the point where the militia requested permission to make a sortie, Leyba refused. The attackers eventually withdrew and headed north, destroying crops, livestock, and buildings as they went.