Complex sentence: On the night of October 24, the 118th Division of the 40th Corps arrived at the blocking position, and the Chinese had set up numerous ambush positions on the ridges overlooking the Onjong-Pukchin road.
Split into simpler sentences: On the night of October 24, the 118th Division of the 40th Corps arrived at its designated blocking position. Meanwhile, the Chinese had set up numerous ambush positions on the ridges overlooking the Onjong-Pukchin road.