Complex sentence: Daher was surprised and angered by Ismail's reticence to attack and in response, Ali Bey sent 35,000 troops under Abu al-Dhahab in May.
Split into simpler sentences: Daher was surprised and angered by Ismail's reticence to attack. In response to Daher's indignation, Ali Bey sent 35,000 troops under Abu al-Dhahab in May.