The Intermediate Sex was a work by Edward Carpenter expressing his views on homosexuality. Carpenter argues that "uranism", as he terms homosexuality, was on the increase, marking a new age of sexual liberation. The work was an influence on Robert Graves and Siegfried Sassoon, both young war-poets and officers in England's trenches when they met. During the time they served together, the men were friends, and Pat Barker's novel Regeneration is a fictionalization of their interactions.