The Fog of War is a 20th century fable, a story of an American dreamer who rose from humble origins to the heights of political power. Robert S. McNamara was both witness to and participant in many of the crucial events of the 20th century: the crippling Depression of the 1930s; the industrialization of the war years; the development of a different kind of warfare based on air power and the creation of a new American meritocracy. He was also an idealist who saw his dreams and ideals challenged by the role he played in history.