The Good Soldier by Ford Madox Ford

Classic World War I novel, first published in 1915. According to Wikipedia: "Ford Madox Ford (December 17, 1873 – June 26, 1939) was an English novelist, poet, critic and editor whose journals, The English Review and The Transatlantic Review, were instrumental in the development of early 20th-century English literature. He is now best remembered for The Good Soldier (1915) and the Parade's End tetralogy."