A Hobbit, a Wardrobe, and a Great War: How J.R.R. Tolkien and C.S. Lewis Rediscovered Faith, Friendship, and Heroism in the Cataclysm of 1914-18

by Joseph Loconte

explains historian John Keegan, the First World War “damaged civilization, the rational and liberal civilization of the European enlightenment, permanently for the worse and, through the damage done, world civilization also.”