Evacuation of Manchukuo

Evacuation of Manchukuo means people had to leave an area called Manchukuo because it became too dangerous for them to stay. Manchukuo was a place in China that was controlled by Japan. During World War II, the Japanese army was fighting against the Allies, which included China, America, and their friends. The fight in Manchukuo became really intense, so some people had to leave the place to stay safe.

When people leave a place because of danger, they call it an evacuation. It's like when you need to leave your house during a fire and go to a safe place. Similarly, people had to leave Manchukuo because the Japanese army and the Allies were fighting there. People went to other places to stay safe until the fighting stopped.