In 1968, Stephen Reeder Donaldson languished in Vietnam. By inclination a conscientious objector, he had been compelled to serve in the armed forces.
Much later, and after dropping out of his Ph.D. program and moving to New Jersey in order to write fiction, Donaldson made his publishing debut with the first 'Covenant' trilogy in 1977. That enabled him to move to a healthier climate. He now lives in New Mexico.
Donaldson's two year compulsory military duty would be the deep undercurrent of his escapist fantasy writing. In 'The Chronicles of Thomas Covenant, the Unbeliever', the protagonist was a leper struggled with disempowerment in a Land he did not really believe in.
Say to the Lords that their utmost limit of their span of days upon the Land is seven times seven years from this present time. Before the end of those days are numbered, I [Lord Foul the Despiser] will have command of life and death ~ The Council of Lords.