Cynthia Wachtell, author of War No More: the Antiwar Impulse in American Literature 1861-1914, discusses how Romantic literature, which tended to sanitize and idealize war, was unsuitable for portraying the mechanization of modern warfare and the brutal reality of the Civil War; how Julia Ward Howe, writer of The Battle Hymn of the Republic, eventually rejected the glorification of war and called for a worldwide woman's movement to advocate for disarmament; how Mark Twain's brief informal...