Simplify the following text for a Grade 8 native English-speaking person.
Original: The 3rd Tank Division of the IJA crossed the Yellow River around Zhengzhou in late April and defeated Chinese forces near Xuchang , then swung around clockwise and besieged Luoyang .
Simplified: The Japanese 3rd Tank Division crossed the Yellow River around Zhengzhou in late April and defeated the Chinese near Xuchang . They then moved around clockwise and put Luoyang under siege .