What is the theme of Slaughterhouse-Five by Kurt Vonnegut?

The theme of Slaughterhouse-Five by Kurt Vonnegut is the absurdity and futility of war, as well as the resilience of the human spirit in the face of trauma and destruction. The novel follows Billy Pilgrim, a hapless American soldier who becomes unstuck in time and experiences the events of his life in a nonlinear fashion, including his experiences as a prisoner of war in Dresden during the firebombing of the city by Allied forces. Through Billy's fragmented and surreal narrative, Vonnegut explores the devastating effects of war on individuals and society, the power of memory and trauma, and the search for meaning in a seemingly chaotic and incomprehensible world.