Iron Kingdom traces Prussia's involvement in the continent's foundational religious and political conflagrations: from the devastations of the Thirty Years War through centuries of political machinations to the dissolution of the Holy Roman Empire, from the enlightenment of Frederick the Great to the destructive conquests of Napoleon, and from the "iron and blood" policies of Bismarck to the creation of the German Empire in 1871, with all that implied for the tumultuous twentieth century.