Complex sentence: The heavy casualties suffered at Dong Xoai was another humiliation for the South Vietnamese government, once again demonstrating the inability of the regular South Vietnamese Army to deal with the Viet Cong guerillas during the early phases of the conflict.
Split into simpler sentences: The heavy casualties suffered at Dong Xoai was another humiliation for the South Vietnamese government. Once again demonstrating the inability of the regular South Vietnamese Army to deal with the Viet Cong guerillas during the early phases of the conflict.