"The Sympathizer" is a novel by Viet Thanh Nguyen that follows a half-Vietnamese, half-French communist spy during the Vietnam War. The story is narrated by the protagonist, who grapples with his identity while infiltrating a group of South Vietnamese exiles in the United States after the fall of Saigon. The book explores themes of loyalty, betrayal, and the complexities of war. It delves into the experiences of Vietnamese immigrants and critiques both American and Vietnamese cultures. The novel won the Pulitzer Prize for Fiction in 2016, highlighting its significant impact and relevance in contemporary literature.