After serving in World War II and suffering a nervous breakdown, J.D. Salinger published his novel The Catcher in the Rye in 1951, which was both critically and commercially successful. Some critics disapproved of the novel's portrayal of its protagonist Holden Caulfield and his dissatisfaction with society. Salinger struggled with relationships and privacy for the rest of his life, publishing no new works after 1965 but continuing to write each day until his death in 2010.