Okay kiddo, so a long time ago in China there was a big fight between two groups of people called the Ming Dynasty and the Mongolians. They were fighting to be in charge of that part of China.
The battle happened in a place called Dongxing and it was a really important battle because both sides wanted to win really badly. It was kind of like a big game with lots of people on one team trying to beat lots of people on the other team.
The Ming Dynasty had lots of soldiers who fought with swords and spears and tried to protect their land. The Mongolians were good at riding horses and shooting arrows.
The fighting went on for a long time and both sides were really strong. But in the end, the Ming Dynasty won the battle. They were really happy that they had won and they could keep their land safe.