What is the purpose for the flashback in chapter 8?
The flashback in chapter 8 describes a Christmas play that Bruno’s grandmother had Bruno and Gretel perform. Bruno thinks of the play because he is missing his grandmother and grandfather. His memory demonstrates how unhappy he is, and how thinking back to happier times does not comfort him because he remembers when things started going downhill. Ralf wearing his Nazi uniform offends grandma.
The author includes this flashback to show how politics can destroy families. In Nazi Germany, not every German gladly followed Hitler. There were many people who disagreed with his policies and how the country was being run. Sometimes this could cause a rift in a previously happy family. World War II and Nazism tore Germany apart.