What details about the setting help make the characters' times and lifestyles seem real In the novel the boy in the striped pajamas?

In "The Boy in the Striped Pajamas," the stark contrast between Bruno's affluent home in Berlin and the bleak surroundings of the concentration camp highlights the grim reality of World War II. The descriptions of Bruno's family's lavish lifestyle, such as their spacious house and the presence of servants, juxtapose sharply with the austere and oppressive environment of the camp, where the prisoners live in squalor. These details effectively illustrate the innocence of childhood against the backdrop of a horrific historical context, grounding the characters' experiences in a poignant and unsettling reality.