The German Reich was a country that existed a long time ago. It was ruled by a person called the Kaiser. The Kaiser was like the king of Germany.
The German Reich was very big and powerful. It had lots of people and lots of land. The people who lived in the German Reich were called Germans, and they spoke a language called German.
The German Reich wanted to be the most powerful country in the world, so they began to fight with other countries. They had a big war, called World War I, where they fought against other countries, like France and Great Britain.
After World War I, the German Reich was not allowed to have a big army or powerful weapons. They also had to pay a lot of money to the countries they fought against. The German people were upset about this and wanted to be strong again.
A man named Adolf Hitler became the leader of Germany. He wanted to make Germany strong again and have a big army. He decided to build up the army secretly and take over other countries to make the German Reich bigger.
Hitler's plan resulted in World War II. The German Reich lost the war, and many people were killed. After the war, the German Reich was divided into two parts, and the country changed its name to Germany.