
Though a pacifist, Monsarrat served in World War II, first as a member of an ambulance brigade and then as a member of the Royal Naval Volunteer Reserve (RNVR). He later commented in his autobiography that the 1931 Invergordon Naval Mutiny influenced his interest in politics and social and economic issues after college. The law failed to inspire him, however, and he turned instead to writing, moving to London and supporting himself as a freelance writer for newspapers while writing four novels and a play in the space of five years (1934–1939).

Born on Rodney Street in Liverpool, Monsarrat was educated at Winchester and Trinity College, Cambridge.
