Reinhold Niebuhr (1892-1971) was a Protestant theologian best known for his study of the task of relating the Christian faith to the reality of modern politics and diplomacy. He is a crucial contributor to modern just war thinking.

His books include Moral Man and Immoral Society and The Nature and Destiny of Man. Modern Library ranked the latter as one of the top 20 nonfiction books of the 20th century.

Last Updated: May 30, 2018