"The Sorrow of War" is a novel by Vietnamese author Bảo Ninh, published in 1991. It tells the story of a North Vietnamese soldier, Kien, who reflects on his experiences during the Vietnam War. The narrative explores the psychological impact of war, highlighting themes of loss, trauma, and the futility of conflict. The book is notable for its non-linear storytelling and vivid imagery, capturing the brutality of battle and the emotional scars left on soldiers. Through Kien's memories, the novel examines the complexities of love, death, and the struggle to find meaning in a world ravaged by war.