Okay kiddo! So, a long time ago in history, there was a big war in Europe called World War II. Germany was one of the countries that fought in the war, and they ended up losing. After the war was over, a lot of things changed for Germany and the people who lived there.
One thing that happened was that many Germans who lived in other countries, especially in Eastern Europe, were forced to leave their homes and move back to Germany. They were called "expellees" because they were expelled, or kicked out, of their homes.
When they came back to Germany, they felt like they didn't have a place anymore. They didn't feel like they belonged in their new homes, and they were angry at the people who had forced them to leave their old homes. They also felt like they didn't have the same rights as other Germans, because they had been taken away from them when they were forced to leave their old homes.
So, some of these expellees decided to come together and form a group called the "League of Expellees and Deprived of Rights." This group was made up of people who had been expelled from Eastern Europe and people whose rights had been taken away for other reasons.
The group was created to help these people feel like they had a voice and to fight for their rights. They wanted to make sure that the government and other people in Germany knew what they had been through and that they weren't going to let it happen again.
They also wanted to create an "all-German bloc," which meant that all Germans, no matter where they came from, would stick together and work together. They believed that this was the best way to make sure that everyone's rights were protected and that they could build a better future for themselves and their families.
So, in short, the League of Expellees and Deprived of Rights was a group of Germans who had been forced to leave their homes and had their rights taken away. They came together to fight for their rights and to create a united front with other Germans to create a better future for themselves.